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			{{Short description\|Chain of shoals between India and Sri Lanka}}
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			{{Other uses\|Adams Bridge (disambiguation)\|Sethubandhanam (disambiguation)\|Sethu (disambiguation)}}
			{{redirect\|Ram Setu\|the 2022 Indian film\|Ram Setu (film)}}
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			{{Use British English\|date=March 2013}}
			{{Use dmy dates\|date=March 2020}}
	{{Coord\|9.1210\|N\|79.5217\|E\|region:IN_type:landmark\|display=title}}		{{Coord\|9.1210\|N\|79.5217\|E\|region:IN_type:landmark\|display=title}}
			] '''Adam's Bridge''',{{efn\|{{langx\|si\|ආදම්ගේ පාලම}} ''{{IAST\|ādamgē pālama}}''; {{langx\|ta\|ஆதாம் பாலம்}} ''{{IAST\|ātām pālam}}''}} also known as '''Rama's Bridge''' or '''''Rama Setu''''',{{efn\|{{langx\|si\|රාමගේ පාලම}} ''{{IAST\|rāmagē pālama}}''; {{langx\|ta\|ராமர் பாலம்}} ''{{IAST\|Irāmar pālam}}''; {{langx\|sa\|रामसेतु}} ''{{IAST\|rāmasetu}}''{{efn\|also spelled ''Ram Sethu'', ''Ramasethu'' and variants.}}}} is a chain of natural ] ]s between ], also known as Rameswaram Island, off the southeastern coast of ], ], and ], off the northwestern coast of ]. Geological evidence suggests that the bridge was formerly a land connection between India and Sri Lanka.<ref name=EB>{{cite encyclopedia\|title=Adam's bridge \|url=https://www.britannica.com/place/Adams-Bridge \|encyclopedia=] \|year=2007 \|access-date=14 September 2007 \|archive-url=https://web.archive.org/web/20080113002452/https://www.britannica.com/eb/article-9003680 \|archive-date=13 January 2008 \|url-status=live }}</ref>
	]

			The feature is {{convert\|48\|km\|abbr=on\|-1}} long and separates the ] (southwest) from the ] (northeast). Some regions of the bridge are dry, and the sea in the area rarely exceeds {{convert\|1\|m\|ft\|sigfig=1}} in depth, making it quite difficult for boats to pass over it.<ref name="EB" />
	'''Adam's Bridge''' (]: {{lang\|ta\|ஆதாம் பாலம்}} ''{{transl\|ta\|āthām pālam}}''), also known as '''Rama's Bridge''' or '''Rama Setu''' (]: {{lang\|ta\|இராமர் பாலம்}} ''{{transl\|ta\|Rāmar pālam}}'', {{lang-hi\|रामसेतु}}, ]: {{lang\|sa\|रामसेतु}}, ]: {{lang\|ml\|രാമസേതു}}, ''{{IAST\|rāmasetu}}''),<ref>also spelled ''Rama Setu'', ''Ram Sethu'', ''Ramasethu'' and variants.</ref> is a chain of ] ]s, between ], also known as ], off the southeastern coast of ], ], and ], off the northwestern coast of ]. Geological evidence suggests that this bridge is a former land connection between India and Sri Lanka.<ref name = EB>{{cite web\|title= Adam's bridge\| url=http://www.britannica.com/eb/article-9003680\|work= ]\|year=2007\|accessdate=2007-09-14}}</ref>

			==Etymology==
	The bridge is 18 miles (30 km) long<ref>Length taken from Google Earth</ref> and separates the ] (southwest) from the ] (northeast). Some of the sandbanks are dry and the sea in the area is very shallow, being only 3 ft to 30 ft (1 m to 10 m) deep in places, which hinders navigation.<ref name = EB/><ref></ref><ref></ref> It was reportedly passable on foot up to the 15th century until storms deepened the channel: temple records seem to say that Rama’s Bridge was completely above sea level until it broke in a ] in 1480 CE.<ref name="Garg1992">{{cite book\|last=Garg\|first=Ganga Ram\|title=Encyclopaedia of the Hindu World\|volume=A-Aj\|year=1992\|publisher=South Asia Books\|location=New Delhi\|isbn=81-7022-374-1\|page=142\|chapter=Adam's Bridge}}</ref>
			]'s '']'' ({{circa\|850}}) refers to the structure as ''Set Bandhai'' (lit. Bridge of the Sea).<ref name=":3">{{Cite book\|url=https://archive.org/details/ceylonagenerald02suckgoog\|title=Ceylon: A General Description of the Island, Historical, Physical, Statistical. Containing the Most Recent Information\|last=Suckling\|first=Horatio John\|date=1876\|publisher=Chapman & Hall\|pages=\|language=en}}</ref> The name Adam's Bridge appeared probably around the time of ] ({{circa\|1030}}).<ref name=":3" /> This appears to have been premised on the ]ic belief that ] — where the biblical ] fell to earth — is located in Sri Lanka, and that Adam crossed over to peninsular India via the bridge after his expulsion from the ].<ref name="Ricci">{{cite book\|url=https://books.google.com/books?id=3OsbFW2KWtEC&pg=PA136\|title=Islam Translated: Literature, Conversion, and the Arabic Cosmopolis of South and Southeast Asia\|last1=Ricci\|first1=Ronit\|date=2011\|publisher=University of Chicago Press\|isbn=9780226710884\|page=136}}</ref>

			The ancient Sanskrit epic '']'' (8th century BCE–3rd century CE) mentions ] constructed by the god ] to reach the island ] and rescue his wife ] from ]. In popular belief, Lanka is equated to present-day Sri Lanka and the bridge is described as "Rama's Setu".<ref name=":1">{{Cite journal \|last=Henry \|first=Justin W. \|date=2019 \|title=Explorations in the Transmission of the Ramayana in Sri Lanka \|url=https://www.tandfonline.com/doi/full/10.1080/00856401.2019.1631739 \|journal=South Asia: Journal of South Asian Studies \|language=en \|volume=42 \|issue=4 \|pages=732–746 \|doi=10.1080/00856401.2019.1631739 \|issn=0085-6401 \|s2cid=201385559}}</ref>
	==Name==
	The earliest map that calls this area Adam's bridge was prepared by a British cartographer in 1804, probably referring to an ] legend, according to which ] used the bridge to reach ] in Sri Lanka, where he stood repentant on one foot for 1,000 years, leaving a large hollow mark resembling a footprint. Both the peak and the bridge are named after this legend.<ref name=EB/><ref name= placenames/><ref></ref>

			==Geological evolution==
	], wherein monkeys and bears are shown building a bridge to ]]]
			] image of Adam's Bridge]]
			]
			] of the Palk Strait, showing water depth in metres]]
			Due to lowered sea levels during the ] (115,000–11,700 years ]) where sea levels reached a maximum of {{cvt\|120\|m}} below present values, the entirety of the relatively shallow ] (which reaches a maximum depth of only {{cvt\|35\|m}}) was exposed as dry land connecting the mainland Indian subcontinent and Sri Lanka. Following the rise to present sea levels during the ], by around 7,000 years ago, the strait became submerged, including the region of Adam's Bridge/Rama Setu. The islands of Adam's Bridge became emergent again following sea level falls in the region from around 5,000 years ago to the present.<ref name=":4">{{Cite journal \|last1=Dubey \|first1=K.M. \|last2=Chaubey \|first2=A.K. \|last3=Gaur \|first3=A.S. \|last4=Joglekar \|first4=M.V. \|date=January 2023 \|title=Evolution of Ramasetu region as a link between India and Sri Lanka during the late Pleistocene and Holocene \|url=https://www.cambridge.org/core/product/identifier/S0033589422000412/type/journal_article \|journal=Quaternary Research \|language=en \|volume=111 \|pages=166–176 \|doi=10.1017/qua.2022.41 \|issn=0033-5894}}</ref>

			The bridge starts as a chain of ]s from the ] tip of India's ]. It ends at Sri Lanka's ]. Pamban Island is accessed from the Indian mainland by the {{cvt\|2\|km}} long ]. Mannar Island is connected to mainland Sri Lanka by a causeway.
	The bridge was first mentioned in the ancient Sanskrit epic '']'' of ].<ref name=placenames>{{cite book\|last=Room\|first=Adrian\|title=Placenames of the World\|publisher=McFarland & Company\|year=2006\|page=19\| isbn=0786422483}}</ref> The western world first encounters it in "historical works in the 9th century" by ] in his '']'' (ca. 850 CE), referring to it is ''Set Bandhai'' or "Bridge of the Sea".<ref>Horatio John Suckling, Ceylon: A General Description of the Island, Historical, Physical, Statistical, London (1876), p. 76.</ref> Later, ] described it.

			The lack of comprehensive field studies explains many of the uncertainties regarding the nature and origin of Adam's Bridge. It mostly consists of a series of parallel ledges of sandstone and conglomerates that are hard at the surface and grow coarse and soft as they descend to sandy banks.<ref name=":2" /> The Marine and Water Resources Group of the ] (SAC) of the ] (ISRO) concludes that Adam's Bridge comprises 103 small patch reefs.<ref name=":2">{{Cite journal\|last1=Bahuguna\|first1=Anjali\|last2=Nayak\|first2=Shailesh\|last3=Deshmukh\|first3=Benidhar\|date=1 December 2003\|title=IRS views the Adams bridge (bridging India and Sri Lanka)\|journal=Journal of the Indian Society of Remote Sensing\|language=en\|volume=31\|issue=4\|pages=237–239\|doi=10.1007/BF03007343\|s2cid=129785771\|issn=0255-660X}}</ref> One study tentatively concludes that there is insufficient evidence to indicate eustatic emergence and that the raised reef in southern India probably results from a local uplift.<ref name="sto">{{cite journal\|title=Raised Reefs of Ramanathapuram, South India\|author1=D. R. Stoddart \|author2=C. S. Gopinadha Pillai \|jstor=621544\|journal=Transactions of the Institute of British Geographers\|volume=56 \|year=1972\|pages=111–125\|doi=10.2307/621544\|issue=56 \| issn = 0020-2754 }}</ref>
	The name ''Rama's Bridge'' or ''Rama Setu'' (]; ''setu'': bridge) was given to this bridge of shoals in Rameshwaram, as ] legend identifies it with the bridge built by the ] (monkey-men) army of ] , which he used to reach ] and rescue his wife ] from the ] king, ], as stated in the ] '']''.<ref name="placenames"/>

			==Transport corridor==
	The sea separating India and Sri Lanka is called ] "Sea of the Bridge". Maps prepared by a Dutch cartographer in 1747, available at the ] ] show this area as ''Ramancoil'', a colloquial form of the Tamil ''Raman Kovil'' (Rama's Temple)<ref></ref> Another map of Mogul India prepared by J. Rennel in 1788 retrieved from the same library called this area the area of the Rama Temple <ref></ref> Many other maps in Schwartzberg's historical atlas<ref></ref><ref></ref> and other sources call this area with various names like Koti, Sethubandha and Sethubandha Rameswaram along with others.<ref></ref><ref></ref><ref></ref><ref>Marco Polo (1854) ; Marco polo's travel book calls the Adam's Bridge area Ramar bridge</ref> Valmiki's ''Ramayana'' attributes the building of the bridge to Lord ] in verse 2-22-76.<ref></ref>
			]
			], c. 1926]]
			In the vicinity of Adam's Bridge/Rama Setu, the water is typically only {{cvt\|1–3\|m\|abbr=on}} deep.<ref name=":4" /> Due to the shallow waters, Adam's Bridge presents a formidable hindrance to navigation through the Palk Strait. Though trade across the India–Sri Lanka divide has been active since at least the first millennium BC, it was limited to small boats and dinghies. Larger ocean-going vessels from the west have had to navigate around Sri Lanka to reach India's eastern coast.<ref name = Francis>{{cite book\|last=Francis Jr.\|first= Peter\|title=Asia's Maritime Bead Trade: 300 B.C. to the Present\| publisher = University of Hawaii Press\| year = 2002\| isbn=978-0-8248-2332-0\|url=https://books.google.com/books?id=zzZBdGQN_TIC&pg=PA4}}</ref> Eminent British geographer ], who surveyed the region as a young officer in the late 18th century, suggested that a "navigable passage could be maintained by dredging the strait of Ramisseram {{sic}}". However, little notice was given to his proposal, perhaps because it came from "so young and unknown an officer", and the idea was only revived 60 years later.

			In 1823, ] (then an ]) was assigned to survey the ], which separates the Indian mainland from the island of Rameswaram and forms the first link of Adam's Bridge. Geological evidence indicates that a land connection bridged this in the past, and some ] records suggest that violent storms broke the link in 1480. Cotton suggested that the channel could be dredged to enable passage of ships, but nothing was done until 1828, when Major Sim directed the blasting and removal of some rocks.<ref name = "Gazeteer 1886">{{cite book\|last=Hunter\|first= Sir William Wilson\|author-link=William Wilson Hunter\|title=The Imperial Gazetteer of India\| publisher = Trübner & co.\| year = 1886\|pages= 21–23}}</ref><ref name = "Cotton">{{cite book\|last=Digby\|first= William \|author-link=William Digby (writer) \|title=General Sir Arthur Cotton, R. E., K. C. S. I.: His Life and Work\|url=https://archive.org/details/generalsirarthur01hope\| publisher = Hodder & Stoughton\| year = 1900\|pages = –16}}</ref>
	==Location==
	]
	Adam's Bridge starts as chain of shoals from the ] tip of India's ] and ends at Sri Lanka's ]. Pamban Island is semi-connected to the Indian mainland by 2 km long ]. Mannar Island is connected to mainland Sri Lanka by a causeway. The border between India and Sri Lanka is said to pass across one of the shoals constituting one of the shortest land borders in the world. Adam's bridge and neighbouring areas like ], Dhanushkodi, Devipattinam and Thirupullani are mentioned in the context of various legends in Ramayana.<ref>{{Dead link\|date=July 2010}}</ref><ref>{{cite web\|url=http://www.madurai.com/suryatours/rameswaramtravel.htm \|title=Madurai Travels - Rameswaram \|publisher=Madurai.com \|date= \|accessdate=2010-07-16}}</ref>
	.

			A more detailed marine survey of Adam's Bridge was undertaken in 1837 by lieutenants F. T. Powell, Ethersey, Grieve, and Christopher, along with draughtsman Felix Jones, and operations to dredge the channel were recommenced the next year.<ref name = "Gazeteer 1886"/><ref name = "Dawson">{{cite book\|last=Dawson\|first= Llewellyn Styles\|title=Memoirs of hydrography\|url=https://archive.org/details/memoirshydrogra00dawsgoog\| publisher = Keay\| year = 1885 \|page= \|isbn=978-0-665-68425-8}}</ref> However, these and subsequent efforts in the 19th century did not succeed in keeping the passage navigable for any vessels except those with a light draft.<ref name= EB/>
	==Transportation and navigation==
	]]]
	], which connects the ] with the Indian mainland was constructed in 1914]]

			=== Sethusamudram Shipping Canal Project ===
	Pamban Island (Tamil Nadu, India) with its small port of Rameswaram is about 2 km from mainland India.
			{{Main\|Sethusamudram Shipping Canal Project}}
	The ] crossing the Pamban channel links Pamban Island with mainland India. It refers to both: a road bridge and a cantilever railway bridge. Small boats would go below the 2065 m long road bridge and the railway bridge would open up.
			]

			The ] constituted nine committees before independence, and five committees since then, to suggest alignments for a Sethusamudram canal project. Most of them suggested land-based passages across Rameswaram island, and none recommended alignment across Adam's Bridge.<ref> {{webarchive\|url=https://web.archive.org/web/20071014012322/http://sethusamudram.gov.in/History.asp \|date=14 October 2007 }}</ref> The Sethusamudram project committee in 1956 also strongly recommended to the Union government to use land passages instead of cutting Adam's Bridge because of the several advantages of land passage.<ref>{{cite news\| title= Use land based channel and do not cut through Adam bridge:Sethu samudram project committee report to Union Government\| url= http://www.india-forum.com/articles/10327/1/Rama-Setu-and-setusamudram-channel-conspiracy\| date= 30 September 2007\| access-date= 15 October 2007\| quote= ""In these circumstances we have no doubt, whatever that the junction between the two sea should be effected by a Canal; and the idea of cutting a passage in the sea through Adam's Bridge should be abandoned."\| archive-url= https://web.archive.org/web/20071013125126/http://www.india-forum.com/articles/10327/1/Rama-Setu-and-setusamudram-channel-conspiracy\| archive-date= 13 October 2007\| url-status= dead\| df= dmy-all}}</ref>
	The problem in navigation exists because big ships can't travel in the shallow waters of the Pamban channel. Dredging in this channel would cost more than dredging a channel in the Rama Setu area, where the waters are comparatively deep and lesser earth would have to be dredged. Hence, in 2001, the Government of India approved a multi-million dollar Sethusamudram Shipping Canal Project that aims to create a ship channel across the Palk Bay cutting across Rama Setu. Various organizations have opposed the project based on religious, economic and environmental grounds and have sought the implementation of one of the alternative alignments considered during the earlier stages of the discussion.

			In 2005, the government of India approved a multi-million dollar ]. This project aims to create a ship channel across the ] by dredging the shallow ocean floor near ]. The channel is expected to cut over {{cvt\|400\|km}} (nearly 30 hours of shipping time) off the voyage around the island of ]. This proposed channel's current alignment requires dredging through Adam's Bridge.
	A ] service linked ] in India with ] in Sri Lanka. The service was part of the ''Indo-Ceylon Railway'' service during the British Rule. One could buy a railway ticket from ] to ], whereby people traveled by rail from Chennai to Pamban island, go by ferry to Talaimannar, and then go again by rail to Colombo. in 1964, a ] completely destroyed Dhanushkodi, a train about to enter the station, the tracks and the pier and heavily damaged the shores of Palk Bay and Palk Strait.<ref>For further details see ]</ref> Dhanushkodi was not rebuilt and the train thence finished at Rameswaram. There was a small ferry service from there to Talaimannar, but it has been suspended around 1982 because of the fighting between Sri Lankan government forces and the separatist ].

			Indian political parties including the ] (BJP), ] (AIADMK), ] (RJD), ] (JD(S)) and some ] organisations oppose dredging through the shoal on religious grounds. The contention is that Adam's Bridge is identified popularly as the causeway described in the ]. The political parties and organisations suggest alternate alignment for the channel that avoids damage to Adam's Bridge.<ref>{{cite web\|url=http://www.newkerala.com/oct.php?action=fullnews&id=3715\|title=Ram Setu a matter of faith, needs to be protected: Lalu\|work=NewKerela.com\|date = 21 September 2007\|access-date=24 September 2007}}</ref><ref>{{cite web\|url=http://mangalorean.com/news.php?newstype=local&newsid=53581 \|title=Rama is 'divine personality' says Gowda \|work=MangaoreNews.com \|date=22 September 2007 \|access-date=24 September 2007 \|url-status=dead \|archive-url=https://web.archive.org/web/20080421223657/http://mangalorean.com/news.php?newstype=local&newsid=53581 \|archive-date=21 April 2008 }}</ref> The then state and central governments opposed such changes, with the Union Shipping Minister T. R Baalu, who belongs to the ] and a strong supporter of the project maintaining that the current proposal was economically viable and environmentally sustainable and that there were no other alternatives.<ref>{{Cite web \|url=http://www.indianexpress.com/story/218827.html \|title=IndianExpress.com–Sethu: DMK chief sticks to his stand \|access-date=8 February 2016 \|archive-url=https://web.archive.org/web/20080421144230/http://www.indianexpress.com/story/218827.html \|archive-date=21 April 2008 \|url-status=dead }}</ref><ref>{{Cite web\|url=http://www.newkerala.com/oct.php?action=fullnews&id=5789\|title=Latest India News @ NewKerala.Com, India}}</ref><ref>{{Cite web \|url=http://www.indianexpress.com/sunday/story/220089.html \|title=indianexpress.com \|access-date=8 February 2016 \|archive-url=https://web.archive.org/web/20080421144411/http://www.indianexpress.com/sunday/story/220089.html \|archive-date=21 April 2008 \|url-status=dead }}</ref>
	==Geological evolution==

			Opposition to dredging through this causeway also stems from concerns over its impact on the area's ecology and marine wealth, potential loss of ] deposits in the area and increased risk of damage due to ]s.<ref>{{cite web\|url=http://www.hindu.com/thehindu/holnus/004200708051654.htm\|title= Thorium reserves to be disturbed if Ramar Sethu is destroyed\|work = ]\|date = 5 August 2007\|access-date=24 September 2007\| archive-url= https://web.archive.org/web/20071012213012/http://hindu.com/thehindu/holnus/004200708051654.htm\| archive-date= 12 October 2007 \| url-status= live}}</ref> Some organisations oppose this project on economic and environmental grounds and claim that proper scientific studies were not conducted before undertaking this project.<ref>{{Cite web\|url=https://www.rediff.com/news/2005/jul/19inter.htm\|title=The Sethusamudram canal project\|website=www.rediff.com}}</ref>
	]

			=== Proposed Road and Rail Bridge ===
	Considerable diversity of opinion and confusion exists about the nature and origin of this structure. In the 19th century, there were two prevalent theories explaining the structure. One considered it to be formed by a process of accretion and rising of the land, while the other surmised that it was formed by the breaking away of Sri Lanka from the Indian mainland.<ref name="Ceylon">{{cite book\|last= Tennent \| first = James Emerson\| authorlink=James Emerson Tennent \|title = Ceylon: An Account of the Island Physical, Historical and Topographical\| year = 1859\|publisher = Longman, Green, Longman, and Roberts\|page = 13\|place=London}}</ref> The friable calcerous ridges are broken into large rectangular blocks, which perhaps gave rise to the belief that the causeway is an artificial construction.<ref name="Suess">{{cite book \|last=Suess \|first=Eduard \|authorlink=Eduard Suess \|coauthors=Hertha B. C. Sollas (translator) \|title=The Face of the Earth (Vol. II) \|year=1906 \|publisher=Clarendon Press \|location=Oxford \|pages=512–513}}</ref>
			{{Main\|Palk Strait Bridge}}

			The ] is a proposed road and rail sea bridge and tunnel that would cross the Palk Strait roughly over, or parallel to, Adam's Bridge. It would span from ] at the tip of ] in India, to ] on ] in Sri Lanka, and would be used for both industrial/economic purposes and to boost tourism. The bridge was first seriously proposed by the Indian and Sri Lankan governments in 2002, shelved after security-related objections by the then-Governor of ], and revived for serious consideration in 2023.<ref>{{cite web \|last1=Raju \|first1=Adluri Subramanyam \|title=Bridge that could boost India and Sri Lanka ties \|url=https://www.hindustantimes.com/ht-insight/international-affairs/bridge-that-could-boost-india-and-sri-lanka-ties-101720425419763.html \|website=Hindustan Times \|access-date=26 August 2024 \|language=en \|date=2024-07-08}}</ref> As of August 2024, its status is that the feasibility studies are nearing completion.<ref>{{Cite web \|date=2024-06-16 \|title=Feasibility study on proposal to establish land connectivity with India in final stages, says Sri Lankan President \|url=https://indianexpress.com/article/india/india-sri-lanka-land-connectivity-feasibility-study-on-proposal-in-final-stages-sri-lankan-president-9395903/ \|access-date=2024-07-09 \|website=The Indian Express \|language=en}}</ref>
	According to V. Ram Mohan of the Centre of Natural Hazards and Disaster Studies of the University of Madras "reconstruction of the geological evolution of the island chain is a challenging task and has to be carried out based on circumstantial evidence".<ref name="fl">Frontline, Myth and Reality, September 22, 2007 – October 5, 2007</ref> The lack of comprehensive field studies explains many of the uncertainties regarding the nature and origin of Adam's Bridge, which essentially consists of a series of parallel ledges of sandstone and conglomerates that are hard at the surface and grows coarse and soft as it descends to sandy banks.

			==Religious significance==
	Studies have variously described the structure as a chain of ]s, ], a ridge formed in the region owing to thinning of the earth's crust, a double ],<ref></ref> a sand ], or ]. It has been reported that this bridge was formerly the world's largest ] before it was split into a chain of shoals by the rise in mean sea level few thousand years ago.<ref></ref>
			=== Hinduism ===
			{{Main\|Rama Setu (Ramayana)\|Sethubandhanam}}
			{{See also\|Lanka}}
			]s are shown building a bridge to Lanka.]]
			The ancient Sanskrit epic ''],'' in the ''Yuddhakanda,'' mentions ] constructed by the god ] with aid from an army of ]s (monkeys or forest-dwellers) to reach the island ] and rescue his wife Sita from Ravana.

			In popular belief, Lanka is equated to present-day Sri Lanka.<ref name=":1" /> However, such a correspondence is not explicit in the Ramayana and a few verses can even be held to be against such an identification;<ref name="Ramayana_VOLI">{{Cite book \|title=The Rāmāyaṇa of Vālmīki: An Epic of Ancient India \|publisher=Princeton University Press \|year=1984 \|isbn= \|editor-last=Goldman \|editor-first=Robert P. \|series=Princeton Library of Asian Translations \|volume=I: Bālakāṇḍa \|pages=23–30 \|language=en \|translator-last=Goldman \|translator-first=Robert P.}}</ref> some Sanskrit sources of the first millennium emphasise on the distinction.<ref name=":1" /> ] — who edited the Princeton translation of the epic into English — characterises most of the Ramayana, including the ''Lanka Kanda'', as "kind of elaborate fairy tale" ''by design''; attempts to probe into its historicity were misguided.<ref name="Ramayana_VOLI" />{{efn\|Goldman and other scholars emphasise on the abrupt change of the narrative from Book Two (Ayodhyakanda) to Book Three (Aranyakanda) and onwards — that deals with Rama's efforts to bring back Sita and subsequent exploits in Lanka — from "pseudo-historical" to the "totally fantasied".<ref name="Ramayana_VOLI"/> Goldman cautions against attempts to recover any historical stratum from these books; he reiterates Jacobi's opinion that for the intended audience of the text, South of the Gangetic Plains was terra incognita where the hero can be made to cross over into the supernatural realm.<ref name="Ramayana_VOLI"/> He concludes: "As to the kingdoms of the demons and the monkeys, it is our conviction that they never existed anywhere except in the mind of the poets and more importantly, in the hearts of the countless millions who have been charmed and deeply moved by this strange work."<ref name="Ramayana_VOLI"/>}} John Brockington, noted for his scholarship on Hindu epics, concurs.<ref>{{Cite book \|title=Rāma the Steadfast: An Early Form of the Rāmāyaṇa \|publisher=Penguin \|year=2006 \|isbn=978-0-14-196029-6 \|location=London \|pages=9 \|language=en \|translator-last=Brockington \|translator-first=John \|quote=Many attempts have been made to identify Lankā and Kiskindhā, the vānaras’ city, with real sites on mainland India, and especially to equate Rāvana’s kingdom with the island in modern times renamed Śrī Lanka, but there is nothing in the first stage of the text to indicate that they are anything more than the product of the storytellers’ imaginations, with little help even from travellers’ tales. \|translator-last2=Brockington \|translator-first2=Mary}}</ref>
	Based on satellite remote sensing data, but without actual field verification, Marine and Water Resources Group of Space Application Centre (SAC) of Indian Space Research Organisation (ISRO) states that Adam's Bridge comprises 103 small patch reefs lying in a linear pattern with reef crest (flattened, emergent – especially during low tides – or nearly emergent segment of a reef), sand cays (accumulations of loose coral sands and beach rock) and intermittent deep channels. The coral reefs are designated by the different studies variously as ribbon and atoll reefs.

			In extant historical sources, the equation between the two islands appears for the first time only in the Kasakudi Copper Plates of ] (r. late-8th century) pertaining to the conquest of Sri Lanka by one of his ancestors; as Ramayana took a life of its own under the succeeding Cholas, the identification profferred, justifying their imperial ambitions to invade the island.<ref name=":1" /> The link would then be co-opted by the ] of Jaffna in presenting themselves as the guardians of the bridge.<ref name=":1" /> Nonetheless, two reputed medieval commentaries on the Ramayana — Ramanujiya (drafted c. 1500 by Ramanuja) and Tattvadipika (drafted c. 1550 by Mahesvaratirtha) — continued to make a distinction between Lanka and Sri Lanka.<ref>{{Cite book \|title=The Rāmāyaṇa of Vālmīki: An Epic of Ancient India \|publisher=Princeton University Press \|year=1996 \|isbn=0-691-06662-0 \|editor-last=Goldman \|editor-first=Robert P. \|series=Princeton Library of Asian Translations \|volume=V: Sundarakāṇḍa \|pages=359 \|language=en \|translator-last=Goldman \|translator-first=Sally J. \|translator-last2=Goldman}}</ref>
	The geological process that gave rise to this structure has also been attributed to crustal downwarping, block faulting, and mantle plume activity by one study<ref></ref> while another theory attributes it to continuous sand deposition and the natural process of sedimentation leading to the formation of a chain of barrier islands related to rising sea levels.<ref name="fl"/>Another theory affirms that the origin and linearity of the Adam's bridge may be due to the old shoreline – implying that the two landmasses of India and Sri Lanka were once connected – from where coral reefs evolved.

			=== Islam ===
	Another study explains the origin the structure due to longshore drifting currents which moved in an anticlockwise direction in the north and clockwise direction in the south of Rameswaram and Talaimannar. The sand was supposedly dumped in a linear pattern along the current shadow zone between Dhanushkodi and Talaimannar with later accumulation of corals over these linear sand bodies.{{Citation needed\|date=January 2010}} In a diametrically opposing view, another group of geologists propose crustal thinning theory, block faulting and a ridge formed in the region owing to thinning and asserts that development of this ridge augmented the coral growth in the region and in turn coral cover acted as a `sand trapper'.{{Citation needed\|date=January 2010}}

			Muslim tradition holds that Adam's Bridge was crossed by ] following his expulsion from the ].<ref>{{cite book \| last=Ricci \| first=R. \| title=Banishment and Belonging: Exile and Diaspora in Sarandib, Lanka and Ceylon \| publisher=Cambridge University Press \| series=Asian Connections \| year=2019 \| isbn=978-1-108-57211-8 \| url=https://books.google.com/books?id=yTHFDwAAQBAJ&pg=PA178 \| pages=178–179}}</ref><ref name="Encyclopedia.com 2018">{{cite web \| title=Adams Bridge \| website=Encyclopedia.com \| date=2018-05-23 \| url=https://www.encyclopedia.com/places/asia/south-asia-physical-geography/adams-bridge}}</ref>
	The tombolo model affirms a constant sediment source and a strong unidirectional or bi-directional (monsoonal) longshore current.{{Citation needed\|date=October 2009}} One study tentatively concludes that there is insufficient evidence to indicate eustatic emergence and that the raised reef in south India probably results from a local uplift.<ref name="sto">{{cite journal\|title=Raised Reefs of Ramanathapuram, South India\|author=D. R. Stoddart, C. S. Gopinadha Pillai\|url=http://jstor.org/stable/621544\|journal=Transactions of the Institute of British Geographers\|volume=56 \|year=1972\|pages=111–125\|doi=10.2307/621544}}</ref> Other studies also conclude that during periods of lowered sea level over the last 100,000 years, Adam's Bridge has provided an intermittent land connection between India and Sri Lanka, which according to famous ]s ] and ] supports the ] for speciation in some birds of the Indian Subcontinent.<ref name = Birds >{{cite journal \|last=Ripley \|first= S. Dillon \|authorlink=Sidney Dillon Ripley \|coauthors= ] \|year= 1990 \|month=November \|title=Patterns of Speciation in Indian Birds \|journal=] \|volume=17 \|issue=6 \|pages= 639–648 \|url=http://links.jstor.org/sici?sici=0305-0270%28199011%2917%3A6%3C639%3APOSIIB%3E2.0.CO%3B2-4 \|doi=10.2307/2845145 \|publisher=Journal of Biogeography}}</ref>

			== Controversy over origin claims ==
	] expert Professor Tad S Murty has stated that Adam's bridge might have acted as a protection wall during the ] event in 2004, because of its elevation, and prevented damage to South Kerala. However he concedes that this view is not based on his own original research, nor is he aware of any such studies being carried out by anyone.<ref></ref> While some geologists have the opine that this structure is man-made{{Citation needed\|date=March 2010}}.Government of India, in an affidavit in the ], said that there is no historical proof of the bridge being built by Ram.<ref></ref>
			Religious beliefs that the geological structure was constructed by Rama have caused some controversy as believers reject the natural provenance of Adam's Bridge. S. Badrinarayanan, a former director of the ],<ref name="Rediff">{{Cite web\|url=http://specials.rediff.com/news/2007/jul/31slid3.htm\|title=rediff.com: Adam's Bridge is a man-made structure\|website=specials.rediff.com}}</ref> a spokesman for the Indian government in a 2008 court case,<ref>{{Cite web\|url=https://timesofindia.indiatimes.com/india/Ram-himself-destroyed-Setu-govt-tells-SC/articleshow/3271270.cms\|title=Ram himself destroyed Setu, govt tells SC - Times Of India\|date=23 October 2012\|url-status=live\|archive-url=https://web.archive.org/web/20121023143410/http://articles.timesofindia.indiatimes.com/2008-07-23/india/27940951_1_ram-setu-lord-rama-ram-sethu \|archive-date=23 October 2012 }}</ref> the ],<ref>{{cite web \| last=Gohain \| first=Manash Pratim \| title=Indian Council of Historical Research to look for material evidence of Rama Setu - India News \| website=The Times of India \| date=2017-03-24 \| url=https://timesofindia.indiatimes.com/india/indian-council-of-historical-research-to-look-for-material-evidence-of-rama-setu/articleshow/57817237.cms \| access-date=2022-10-29}}</ref> and an episode from the ] series '']'' have claimed that the structure is man-made.<ref>{{Cite web \|last=Shahane \|first=Girish \|title=Raptures over Ram Setu video underline what's wrong with our government and sections of the media \|url=https://scroll.in/article/862059/response-to-ram-setu-video-underlines-what-is-wrong-with-sections-of-our-government-and-media \|access-date=2021-04-08 \|website=Scroll.in \|date=20 December 2017 \|language=en-US}}</ref>

			In the ''What on Earth?'' episode, those claiming that Adam's Bridge was constructed based their arguments on vague speculation, false implications, and the point that – as with many geological formations – not every detail of its formation has been incontrovertibly settled.<ref>{{cite web \|title=A bridge that Lord Ram built - myth or reality? \|url=https://www.dw.com/en/a-bridge-that-lord-ram-built-myth-or-reality/a-41797300 \|access-date=10 April 2019 \|work=DW \|publisher=Deutsche Welle}}</ref> Indian Geologist ] described the ensuing media controversy as an "abhorrent" example of the "] era, where debates are largely focused on appeals to emotions rather than factual realities".<ref>{{cite web \|author=C.P. Rajendran \|title=A Post-Truth Take on the Ram Setu \|url=https://thewire.in/media/post-truth-take-ram-setu \|access-date=10 April 2019 \|work=The Wire}}</ref><ref>{{Cite news \|date=2019-05-06 \|title='Place faith in science, and not in faith-based culture' \|language=en-IN \|work=The Hindu \|url=https://www.thehindu.com/news/cities/kozhikode/place-faith-in-science-and-not-in-faith-based-culture/article27042083.ece \|access-date=2021-03-07 \|issn=0971-751X \|quote=popular hegemonic culture had so successfully been able to impress upon many people that even scientific organisations were not ready to explore the myth around Ram Setu}}</ref>
	==Age==

			] said that its satellite photos had been egregiously misinterpreted to make this point during the protests against ]. NASA noted: "The images reproduced on the websites may well be ours, but their interpretation is certainly not ours. ] images or photographs from orbit cannot provide direct information about the origin or age of a chain of islands, and certainly, cannot determine whether humans were involved in producing any of the patterns seen."<ref name="HT">{{cite news \|last=Kumar \|first=Arun \|date=14 September 2007 \|title=Space photos no proof of Ram Setu: NASA \|work=] \|url=http://www.hindustantimes.com/StoryPage/StoryPage.aspx?id=d9c8dd88-500b-4953-8a53-2c820ddcc169& \|url-status=dead \|access-date=18 September 2007 \|archive-url=https://web.archive.org/web/20080122044530/http://www.hindustantimes.com/StoryPage/StoryPage.aspx?id=d9c8dd88-500b-4953-8a53-2c820ddcc169& \|archive-date=22 January 2008 \|quote="The mysterious bridge was nothing more than a 30 km long, naturally occurring chain of sandbanks called Adam's bridge", Hess had added. "NASA had been taking pictures of these shoals for years. Its images had never resulted in any scientific discovery in the area.}}</ref>
	Geological Survey of India (GSI) carried out a special programme called “Project Rameswaram” that concluded that age data of corals indicate that the Rameswaram island has evolved since 125,000 years ago. Radiocarbon dating of samples in this study suggests that the domain between Rameswaram and Talaimannar may have thus been exposed sometime between 18,000 and 7,000 years ago.<ref name="fl"/> Thermoluminescence dating by GSI concludes that the sand dunes of Dhanushkodi to Adam's bridge started forming only about 500–600 years ago.<ref name="fl"/>

			A report from the ] found no evidence for the structure being anything but a natural formation.<ref name=":0">{{cite news \|date=5 October 2007 \|title=Myth vs Science \|language=en \|work=] \|url=https://frontline.thehindu.com/cover-story/article30192957.ece \|access-date=12 April 2020}}</ref> The Archaeological Survey of India and the government of India informed the ] in a 2007 affidavit that there was no historical proof of the bridge being built by Rama.<ref>{{cite news \|title=No evidence to prove existence of Ram \|work=] \|url=https://www.rediff.com/news/2007/sep/12ram.htm \|access-date=12 April 2020}}</ref> In 2017 the ] (ICHR) announced a pilot study into the origins of the structure,<ref>{{cite news \|date=25 March 2017 \|title=Twenty research scholars to get training to find 'truth' of Ram Sethu \|work=] \|url=https://indianexpress.com/article/india/scholars-to-get-training-to-find-truth-of-ram-sethu-4584407/ \|access-date=12 April 2020}}</ref> but went on to shelve it.<ref>{{cite news \|date=8 April 2018 \|title=ICHR not to conduct study whether Ram Setu man made, natural \|newspaper=] \|url=https://timesofindia.indiatimes.com/india/ichr-not-to-conduct-study-whether-ram-setu-man-made-natural-head/articleshow/63666280.cms \|access-date=11 February 2020}}</ref>
	Investigation by Centre for Remote Sensing (CRS) of ], Tiruchi, led by Professor S.M. Ramasamy dates the structure to 3,500 years.<ref></ref> In the same study, carbon dating of some ancient beaches between Thiruthuraipoondi and Kodiyakarai shows the Thiruthuraipoondi beach dates back to 6,000 years and Kodiyakarai around 1,100 years ago. Another study suggests that the appearance of the reefs and other evidence indicate their recency, and a coral sample gives a radiocarbon age of 4020±160 years B. P.<ref name="sto"/>

			In 2007, the Sri Lankan Tourism Development Authority sought to promote religious tourism from Hindu pilgrims in India by including the phenomenon as one of the points on its "Ramayana Trail", celebrating the legend of Prince Rama. Some Sri Lankan historians have condemned the undertaking as "a gross distortion of Sri Lankan history".<ref>{{cite news \|last=Kumarage \|first=Achalie \|date=23 July 2010 \|title=Selling off the history via the 'Ramayana Trail' \|work=Daily Mirror \|publisher=Wijeya Newspapers Ltd \|location=Colombo \|url=http://www.dailymirror.lk/print/index.php/opinion1/16407.html \|url-status=dead \|access-date=23 July 2010 \|archive-url=https://web.archive.org/web/20100725000526/http://www.dailymirror.lk/print/index.php/opinion1/16407.html \|archive-date=25 July 2010 \|quote=the Tourism Authority is imposing an artificial targeting a small segment of Indian travellers, specifically Hindu fundamentalists...}}</ref> The idea of Rama Setu as a sacred symbol to be appropriated for political purposes strengthened in the aftermath of protests against the ].<ref>{{Cite journal \|last=Jaffrelot \|first=Christophe \|date=2008 \|title=Hindu Nationalism and the (Not So Easy) Art of Being Outraged: The Ram Setu Controversy \|url=http://journals.openedition.org/samaj/1372 \|journal=South Asia Multidisciplinary Academic Journal \|issue=2 \|doi=10.4000/samaj.1372 \|issn=1960-6060 \|doi-access=free}}</ref>
	==Early surveys and dredging efforts==
	], c.a. 1926]]
	Owing to shallow waters, Adam's bridge presents a formidable hindrance to navigation through the Palk strait. Though trade across the India-Sri Lanka divide has been active since at least the first millennium BCE, it has been limited to small boats and dinghies. Larger ocean-going vessels from the West have had to navigate around Sri Lanka to reach India's eastern coast.<ref name = Francis>{{cite book\|last=Francis, Jr.\|first= Peter\|title=Asia's Maritime Bead Trade: 300 B.C. to the Present\| publisher = University of Hawaii Press\| year = 2002\| isbn=082482332X\|url=http://books.google.com/?id=zzZBdGQN_TIC&pg=PA4}}</ref> Eminent British geographer ], who surveyed the region as a young officer in the late eighteenth century, suggested that a "navigable passage could be maintained by dredging the strait of Ramisseram ". However little notice was given to his proposal, perhaps because it came from "so young and unknown an officer", and the idea was only revived 60 years later.<ref name = Rennell>{{cite journal\|last=Rodd \|first=Rennell \|year=1930 \|title=Major James Rennell. Born 3 December 1742. Died 20 March 1830 \|journal= The Geographical Journal \|volume=75 \|issue=4 \|pages= 289–299 \| url=http://links.jstor.org/sici?sici=0016-7398%28193004%2975%3A4%3C289%3AMJRB3D%3E2.0.CO%3B2-W \|doi=10.2307/1784813 \|publisher=The Geographical Journal }}</ref>

			==See also==
	In 1823, ] (then an ]), was trusted with the responsibility of surveying the ], which separates the Indian mainland from the island of Rameswaram and forms the first link of Ram Setu. Geological evidence indicates that this was at one point bridged by a land connection, and some temple records suggest that the connection was broken by violent storms in 1480. Cotton suggested that the channel be ]d to enable passage of ships, but nothing was done till 1828, when some rocks were blasted and removed under the direction of Major Sim.<ref name = "Gazeteer 1886">{{cite book\|last=Hunter\|first= Sir William Wilson\|authorlink=William Wilson Hunter\|title=The Imperial Gazetteer of India\| publisher = Trübner & co.\| year = 1886\|pages= 21–23}}</ref><ref name = "Cotton">{{cite book\|last=Digby\|first= William \|authorlink=William Digby (writer) \|title=General Sir Arthur Cotton, R. E., K. C. S. I.: His Life and Work\| publisher = Hodder & Stoughton\| year = 1900\|pages = 15–16}}</ref>

			* ]
	A more detailed marine survey of Ram Setu was undertaken in 1837 by Lieutenants F. T. Powell, Ethersey, Grieve and Christopher along with draughtsman Felix Jones, and operations to dredge the channel were recommenced the next year.<ref name = "Gazeteer 1886"/><ref name = "Dawson">{{cite book\|last=Dawson\|first= Llewellyn Styles\|title=Memoirs of hydrography\| publisher = Keay\| year = 1885 \|page= 52\|isbn=0665684258}}</ref> However these, and subsequent efforts in the 19th century, did not succeed in keeping the passage navigable for any vessels except those with a light draft.<ref name= EB/>
			* ], underwater rock formation in the Bahamas
			* ]
			* ], railway bridge in the area
			* ], 2022 action-adventure film inspired by the story of Rama

			== Notes ==
	==Sethusamudram shipping canal project==
			{{Reflist\|group=lower-alpha}}
	{{Main\|Sethusamudram Shipping Canal Project}}
	], 2007\|accessdate = 2007-10-15 \| quote = "“In these circumstances we have no doubt, whatever that the junction between the two sea should be effected by a Canal; and the idea of cutting a passage in the sea through Adam's Bridge should be abandoned.”\|{{deletable image-caption\|1=Monday, 31 December 2007}}}}</ref>]]

	The government of India constituted nine committees before independence, and five committees since then to suggest alignments for a Sethusamudram canal project. Most of them suggested land-based passages across Rameswaram island and none suggested alignment across Adam's bridge.<ref></ref>

	In 2001, the ] approved a multi-million dollar ] that aims to create a ship channel across the ] by dredging the shallow ocean floor near ]. The channel is expected to cut over 400 km (nearly 30 hours of shipping time) off the voyage around the island of ]. This proposed channel's current alignment requires dredging through Rama's Bridge.

	Political parties including the ] (BJP), ] (AIADMK), ] (RJD), ] (JD(S)) and some ] organizations oppose dredging through the shoal on religious grounds — Rama's Bridge being popularly identified as the causeway described in the ] — and suggest using an alternate alignment for the channel that avoids damage to Adam's Bridge.<ref>{{cite web\|url=http://www.newkerala.com/oct.php?action=fullnews&id=3715\|title=Ram Setu a matter of faith, needs to be protected: Lalu\|work=NewKerela.com\|date = September 21, 2007\|accessdate=2007-09-24}}</ref><ref>{{cite web\|url=http://mangalorean.com/news.php?newstype=local&newsid=53581\|title=Rama is 'divine personality' says Gowda\|work=MangaoreNews.com\|date = September 22, 2007\|accessdate=2007-09-24}}</ref> The state and central government have opposed such changes, with Union Shipping Minister T R Baalu, who belongs to the ] and a strong supporter of the project, saying the current proposal was well scrutinised for economic viability and environmental sustainability and that there were no other environmentally feasible alternatives.<ref></ref><ref></ref><ref></ref>

	Opposition to dredging through this causeway also stems from concerns over its impact on the area's ecology and marine wealth, potential loss of ] deposits in the area, and increased risk of damage due to ]s.<ref>{{cite web\|url=http://www.hindu.com/thehindu/holnus/004200708051654.htm\|title= Thorium reserves to be disturbed if Ramar Sethu is destroyed\|work = ]\|date = August 5, 2007\|accessdate=2007-09-24}}</ref> Some organizations are completely opposing this project on economical and environmental grounds and claim proper scientific studies were not conducted before undertaking this project.<ref></ref>

	==Controversies==
	]
	Certain historical inscriptions, old ]s, old dictionary references and some old maps have been said to reinforce a religious and geographical belief that this is an ancient bridge.(see '']''). In 2007 the Sri Lankan Tourism Development Authority sought to promote religious tourism from Hindu piligrims in India by including the phenomenon as one of the points on its "Ramayana Trail", celebrating the ]. Sri Lankan historians condemn the undertaking as "a gross distortion of Sri Lankan history".<ref>{{cite news\|url=http://www.dailymirror.lk/print/index.php/opinion1/16407.html\|title=Selling off the history via the ‘Ramayana Trail’\|last=Kumarage\|first=Achalie\|date=23 July 2010\|work=Daily Mirror\|publisher=Wijeya Newspapers Ltd\|accessdate=23 July 2010\|location=Colombo\|quote=the Tourism Authority is imposing an artificial targeting a small segment of Indian travellers, specifically Hindu fundamentalists...}}</ref> ] and some other U.S.-based news services suggested that they had discovered the remains of the bridge built by Rama and his ] army that is referred to in the ], and that it was not a natural formation, basing their claim on 2002 ] satellite footage.<ref name = "TOI">{{cite news\|title=Hanuman bridge is myth: Experts\|url=http://timesofindia.indiatimes.com/cms.dll/articleshow?artid=25601383\|work = ]\|date = October 19, 2002\|accessdate=2007-09-18}}</ref> NASA distanced itself from the claims saying that what had been captured was nothing more than a 30-km-long, naturally occurring chain of sandbanks.<ref name="HT">{{cite news\|last= Kumar\|first= Arun\|title = Space photos no proof of Ram Setu: NASA\|url=http://www.hindustantimes.com/StoryPage/StoryPage.aspx?id=d9c8dd88-500b-4953-8a53-2c820ddcc169&\| work = ]\|date = September 14, 2007\|accessdate = 2007-09-18 \| quote = "The mysterious bridge was nothing more than a 30 km long, naturally-occurring chain of sandbanks called Adam's bridge", Hess had added. "NASA had been taking pictures of these shoals for years. Its images had never resulted in any scientific discovery in the area.}}</ref> It also clarified that, "The images reproduced on the websites may well be ours, but their interpretation is certainly not ours. Remote sensing images or photographs from orbit cannot provide direct information about the origin or age of a chain of islands, and certainly cannot determine whether humans were involved in producing any of the patterns seen."<ref name="HT"/>

	A team from the Centre for Remote Sensing (CRS) of ], Tiruchi led by Professor S.M. Ramasamy in 2003 said "the land/beaches were formed between Ramanathapuram and Pamban because of the long shore drifting currents which moved in an anti-clockwise direction in the north and clockwise direction in the south of Rameswaram and Talaimannar about 3,500 years ago." and, "as the ] of the beaches roughly matches the dates of Ramayana, its link to the epic needs to be explored".<ref name = "IE">{{cite news\|title=Rama's bridge is only 3,500 years old: CRS\| url=http://www.indianexpress.com/oldStory/17736/\|work = ]\|date = February 2, 2003\|accessdate = 2007-09-18}}</ref> A former director of the ], S. Badrinarayanan, claims that such a natural formation would be impossible. He justifies the same by the presence of a loose sand layer under corals for the entire stretch. Corals normally form above rocks.<ref name = INT>{{cite news\|title = Debate shifted over Ram from Ram Sethu\| url = http://www.newstrackindia.com/newsdetails/896\| publisher = indianewstrack.com\| date = September 15, 2007\|accessdate = 2007-09-18}}</ref><ref></ref> He feels that thorough analysis was not conducted by the Geological Survey of India before undertaking the SSCP project. In connection with the canal project, the ] in its verdict stated that the ''Rama Sethu'' is a man-made structure.<ref>{{Dead link\|date=July 2010}}</ref> Geological and archaeological findings of ]s, a rich assemblage of ]-] ]s and ]s found on both sides of the bridge by the Department of Earth-Science in March 2007 are also quoted as evidence for manmade structure.<ref></ref><ref></ref>

	] belief is that the bridge was created ] and ] with the assistance of ] and the 'monkey army' to reach ] in order to find Rama's wife who was kidnapped by the evil ].Some Hindus claim Adams Bridge to be called Ram Setu (Rama's Bridge) and that it was man-made.{{Citation needed\|date=March 2010}} A 2007 publication of the National Remote Sensing Agency said that the structure "may be man-made", contradicting the report from the Archaeological Survey of India which found no evidence for it being man-made.<ref></ref><ref></ref> In a 2008 court case, a spokesman for the government stated "So where is the Setu? We are not destroying any bridge. There is no bridge. It was not a man-made structure. It may be a superman-made structure, but the same superman had destroyed it. That is why for centuries nobody mentioned anything about it. It (Ram Setu) has become an object of worship only recently,".<ref></ref>

	==See also==
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	==References==		==References==
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	==External links==		==External links==
	{{Commons category\|Adam's Bridge}}		{{Commons category\|Adam's Bridge\|<br/>Adam's Bridge}}
	*		* {{Webarchive\|url=https://web.archive.org/web/20180405140858/http://www.theodorekaye.com/palk-strait-2 \|date=5 April 2018 }}
			* {{Webarchive\|url=https://web.archive.org/web/20100727200105/http://www.ramsethu.org/ \|date=27 July 2010 }}
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	]		{{Geography of Sri Lanka}}
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Revision as of 13:20, 29 October 2024

Chain of shoals between India and Sri Lanka For other uses, see Adams Bridge (disambiguation), Sethubandhanam (disambiguation), and Sethu (disambiguation). "Ram Setu" redirects here. For the 2022 Indian film, see Ram Setu (film).

9°07′16″N 79°31′18″E / 9.1210°N 79.5217°E / 9.1210; 79.5217

Adam's Bridge, also known as Rama's Bridge or Rama Setu, is a chain of natural limestone shoals between Pamban Island, also known as Rameswaram Island, off the southeastern coast of Tamil Nadu, India, and Mannar Island, off the northwestern coast of Sri Lanka. Geological evidence suggests that the bridge was formerly a land connection between India and Sri Lanka.

The feature is 48 km (30 mi) long and separates the Gulf of Mannar (southwest) from the Palk Strait (northeast). Some regions of the bridge are dry, and the sea in the area rarely exceeds 1 metre (3 ft) in depth, making it quite difficult for boats to pass over it.

Etymology

Ibn Khordadbeh's Kitāb al-Masālik wa-l-Mamālik (c. 850) refers to the structure as Set Bandhai (lit. Bridge of the Sea). The name Adam's Bridge appeared probably around the time of Al-Biruni (c. 1030). This appears to have been premised on the Islamic belief that Adam's Peak — where the biblical Adam fell to earth — is located in Sri Lanka, and that Adam crossed over to peninsular India via the bridge after his expulsion from the Garden of Eden.

The ancient Sanskrit epic Ramayana (8th century BCE–3rd century CE) mentions a bridge constructed by the god Rama to reach the island Lanka and rescue his wife Sita from Ravana. In popular belief, Lanka is equated to present-day Sri Lanka and the bridge is described as "Rama's Setu".

Geological evolution

NASA satellite photo: India on top, Sri Lanka at the bottom

Due to lowered sea levels during the Last Glacial Period (115,000–11,700 years Before Present) where sea levels reached a maximum of 120 m (390 ft) below present values, the entirety of the relatively shallow Palk Strait (which reaches a maximum depth of only 35 m (115 ft)) was exposed as dry land connecting the mainland Indian subcontinent and Sri Lanka. Following the rise to present sea levels during the Holocene, by around 7,000 years ago, the strait became submerged, including the region of Adam's Bridge/Rama Setu. The islands of Adam's Bridge became emergent again following sea level falls in the region from around 5,000 years ago to the present.

The bridge starts as a chain of shoals from the Dhanushkodi tip of India's Pamban Island. It ends at Sri Lanka's Mannar Island. Pamban Island is accessed from the Indian mainland by the 2 km (1.2 mi) long Pamban Bridge. Mannar Island is connected to mainland Sri Lanka by a causeway.

The lack of comprehensive field studies explains many of the uncertainties regarding the nature and origin of Adam's Bridge. It mostly consists of a series of parallel ledges of sandstone and conglomerates that are hard at the surface and grow coarse and soft as they descend to sandy banks. The Marine and Water Resources Group of the Space Applications Centre (SAC) of the Indian Space Research Organisation (ISRO) concludes that Adam's Bridge comprises 103 small patch reefs. One study tentatively concludes that there is insufficient evidence to indicate eustatic emergence and that the raised reef in southern India probably results from a local uplift.

Transport corridor

In the vicinity of Adam's Bridge/Rama Setu, the water is typically only 1–3 m (3 ft 3 in – 9 ft 10 in) deep. Due to the shallow waters, Adam's Bridge presents a formidable hindrance to navigation through the Palk Strait. Though trade across the India–Sri Lanka divide has been active since at least the first millennium BC, it was limited to small boats and dinghies. Larger ocean-going vessels from the west have had to navigate around Sri Lanka to reach India's eastern coast. Eminent British geographer Major James Rennell, who surveyed the region as a young officer in the late 18th century, suggested that a "navigable passage could be maintained by dredging the strait of Ramisseram [sic]". However, little notice was given to his proposal, perhaps because it came from "so young and unknown an officer", and the idea was only revived 60 years later.

In 1823, Sir Arthur Cotton (then an ensign) was assigned to survey the Pamban channel, which separates the Indian mainland from the island of Rameswaram and forms the first link of Adam's Bridge. Geological evidence indicates that a land connection bridged this in the past, and some Ramanathaswamy Temple records suggest that violent storms broke the link in 1480. Cotton suggested that the channel could be dredged to enable passage of ships, but nothing was done until 1828, when Major Sim directed the blasting and removal of some rocks.

A more detailed marine survey of Adam's Bridge was undertaken in 1837 by lieutenants F. T. Powell, Ethersey, Grieve, and Christopher, along with draughtsman Felix Jones, and operations to dredge the channel were recommenced the next year. However, these and subsequent efforts in the 19th century did not succeed in keeping the passage navigable for any vessels except those with a light draft.

Sethusamudram Shipping Canal Project

Main article: Sethusamudram Shipping Canal Project

The government of India constituted nine committees before independence, and five committees since then, to suggest alignments for a Sethusamudram canal project. Most of them suggested land-based passages across Rameswaram island, and none recommended alignment across Adam's Bridge. The Sethusamudram project committee in 1956 also strongly recommended to the Union government to use land passages instead of cutting Adam's Bridge because of the several advantages of land passage.

In 2005, the government of India approved a multi-million dollar Sethusamudram Shipping Canal Project. This project aims to create a ship channel across the Palk Strait by dredging the shallow ocean floor near Dhanushkodi. The channel is expected to cut over 400 km (250 mi) (nearly 30 hours of shipping time) off the voyage around the island of Sri Lanka. This proposed channel's current alignment requires dredging through Adam's Bridge.

Indian political parties including the Bharatiya Janata Party (BJP), All India Anna Dravida Munnetra Kazhagam (AIADMK), Rashtriya Janata Dal (RJD), Janata Dal (Secular) (JD(S)) and some Hindu organisations oppose dredging through the shoal on religious grounds. The contention is that Adam's Bridge is identified popularly as the causeway described in the Ramayana. The political parties and organisations suggest alternate alignment for the channel that avoids damage to Adam's Bridge. The then state and central governments opposed such changes, with the Union Shipping Minister T. R Baalu, who belongs to the Dravida Munnetra Kazhagam and a strong supporter of the project maintaining that the current proposal was economically viable and environmentally sustainable and that there were no other alternatives.

Opposition to dredging through this causeway also stems from concerns over its impact on the area's ecology and marine wealth, potential loss of thorium deposits in the area and increased risk of damage due to tsunamis. Some organisations oppose this project on economic and environmental grounds and claim that proper scientific studies were not conducted before undertaking this project.

Proposed Road and Rail Bridge

Main article: Palk Strait Bridge

The Palk Strait Bridge is a proposed road and rail sea bridge and tunnel that would cross the Palk Strait roughly over, or parallel to, Adam's Bridge. It would span from Dhanushkodi at the tip of Pamban Island in India, to Talaimannar on Mannar Island in Sri Lanka, and would be used for both industrial/economic purposes and to boost tourism. The bridge was first seriously proposed by the Indian and Sri Lankan governments in 2002, shelved after security-related objections by the then-Governor of Tamil Nadu, and revived for serious consideration in 2023. As of August 2024, its status is that the feasibility studies are nearing completion.

Religious significance

Hinduism

Main articles: Rama Setu (Ramayana) and Sethubandhanam See also: Lanka

The ancient Sanskrit epic Ramayana, in the Yuddhakanda, mentions a bridge constructed by the god Rama with aid from an army of Vanaras (monkeys or forest-dwellers) to reach the island Lanka and rescue his wife Sita from Ravana.

In popular belief, Lanka is equated to present-day Sri Lanka. However, such a correspondence is not explicit in the Ramayana and a few verses can even be held to be against such an identification; some Sanskrit sources of the first millennium emphasise on the distinction. Robert P. Goldman — who edited the Princeton translation of the epic into English — characterises most of the Ramayana, including the Lanka Kanda, as "kind of elaborate fairy tale" by design; attempts to probe into its historicity were misguided. John Brockington, noted for his scholarship on Hindu epics, concurs.

In extant historical sources, the equation between the two islands appears for the first time only in the Kasakudi Copper Plates of Nandivarman II (r. late-8th century) pertaining to the conquest of Sri Lanka by one of his ancestors; as Ramayana took a life of its own under the succeeding Cholas, the identification profferred, justifying their imperial ambitions to invade the island. The link would then be co-opted by the Aryacakravarti dynasty of Jaffna in presenting themselves as the guardians of the bridge. Nonetheless, two reputed medieval commentaries on the Ramayana — Ramanujiya (drafted c. 1500 by Ramanuja) and Tattvadipika (drafted c. 1550 by Mahesvaratirtha) — continued to make a distinction between Lanka and Sri Lanka.

Islam

Muslim tradition holds that Adam's Bridge was crossed by Adam following his expulsion from the Garden of Eden.

Controversy over origin claims

Religious beliefs that the geological structure was constructed by Rama have caused some controversy as believers reject the natural provenance of Adam's Bridge. S. Badrinarayanan, a former director of the Geological Survey of India, a spokesman for the Indian government in a 2008 court case, the Madras High Court, and an episode from the Science Channel series What on Earth? have claimed that the structure is man-made.

In the What on Earth? episode, those claiming that Adam's Bridge was constructed based their arguments on vague speculation, false implications, and the point that – as with many geological formations – not every detail of its formation has been incontrovertibly settled. Indian Geologist C. P. Rajendran described the ensuing media controversy as an "abhorrent" example of the "post-truth era, where debates are largely focused on appeals to emotions rather than factual realities".

NASA said that its satellite photos had been egregiously misinterpreted to make this point during the protests against Sethusamudram Shipping Canal Project. NASA noted: "The images reproduced on the websites may well be ours, but their interpretation is certainly not ours. Remote sensing images or photographs from orbit cannot provide direct information about the origin or age of a chain of islands, and certainly, cannot determine whether humans were involved in producing any of the patterns seen."

A report from the Archaeological Survey of India found no evidence for the structure being anything but a natural formation. The Archaeological Survey of India and the government of India informed the Supreme Court of India in a 2007 affidavit that there was no historical proof of the bridge being built by Rama. In 2017 the Indian Council of Historical Research (ICHR) announced a pilot study into the origins of the structure, but went on to shelve it.

In 2007, the Sri Lankan Tourism Development Authority sought to promote religious tourism from Hindu pilgrims in India by including the phenomenon as one of the points on its "Ramayana Trail", celebrating the legend of Prince Rama. Some Sri Lankan historians have condemned the undertaking as "a gross distortion of Sri Lankan history". The idea of Rama Setu as a sacred symbol to be appropriated for political purposes strengthened in the aftermath of protests against the Sethusamudram Shipping Canal Project.

Notes

Sinhala: ආදම්ගේ පාලම ādamgē pālama; Tamil: ஆதாம் பாலம் ātām pālam
also spelled Ram Sethu, Ramasethu and variants.
Sinhala: රාමගේ පාලම rāmagē pālama; Tamil: ராமர் பாலம் Irāmar pālam; Sanskrit: रामसेतु rāmasetu
Goldman and other scholars emphasise on the abrupt change of the narrative from Book Two (Ayodhyakanda) to Book Three (Aranyakanda) and onwards — that deals with Rama's efforts to bring back Sita and subsequent exploits in Lanka — from "pseudo-historical" to the "totally fantasied". Goldman cautions against attempts to recover any historical stratum from these books; he reiterates Jacobi's opinion that for the intended audience of the text, South of the Gangetic Plains was terra incognita where the hero can be made to cross over into the supernatural realm. He concludes: "As to the kingdoms of the demons and the monkeys, it is our conviction that they never existed anywhere except in the mind of the poets and more importantly, in the hearts of the countless millions who have been charmed and deeply moved by this strange work."

References

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"'Place faith in science, and not in faith-based culture'". The Hindu. 6 May 2019. ISSN 0971-751X. Retrieved 7 March 2021. popular hegemonic culture had so successfully been able to impress upon many people that even scientific organisations were not ready to explore the myth around Ram Setu
Kumar, Arun (14 September 2007). "Space photos no proof of Ram Setu: NASA". Hindustan Times. Archived from the original on 22 January 2008. Retrieved 18 September 2007. "The mysterious bridge was nothing more than a 30 km long, naturally occurring chain of sandbanks called Adam's bridge", Hess had added. "NASA had been taking pictures of these shoals for years. Its images had never resulted in any scientific discovery in the area.
"Myth vs Science". Frontline. 5 October 2007. Retrieved 12 April 2020.
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Kumarage, Achalie (23 July 2010). "Selling off the history via the 'Ramayana Trail'". Daily Mirror. Colombo: Wijeya Newspapers Ltd. Archived from the original on 25 July 2010. Retrieved 23 July 2010. the Tourism Authority is imposing an artificial targeting a small segment of Indian travellers, specifically Hindu fundamentalists...
Jaffrelot, Christophe (2008). "Hindu Nationalism and the (Not So Easy) Art of Being Outraged: The Ram Setu Controversy". South Asia Multidisciplinary Academic Journal (2). doi:10.4000/samaj.1372. ISSN 1960-6060.

External links

Photo essay on the Palk Strait. Archived 5 April 2018 at the Wayback Machine
Ram Sethu campaign by Hindu Organizations Archived 27 July 2010 at the Wayback Machine

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