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Kolkata Kōlkātā (Bengali)Calcutta
Megacity
Kolkata skylineDurga Puja in KolkataPark Street flyover with Kolkata CBD on left and Kolkata maidan on rightVintage tramsScience City KolkataJorasanko Thakur BariBirla Planetarium and The 42Eden Gardens during a matchHowrah Bridge
Nickname(s): City of Joy, City of Castles, Gateway of Eastern India, Cultural Capital of India
Interactive map outlining Kolkata
KolkataLocation in West BengalShow map of West BengalKolkataLocation in IndiaShow map of IndiaKolkataLocation in AsiaShow map of AsiaKolkataLocation in EarthShow map of Earth
Coordinates: 22°34′22″N 88°21′50″E / 22.57278°N 88.36389°E / 22.57278; 88.36389
Country	India
State	West Bengal
Division	Presidency
District	Kolkata
Government
• Type	Municipal Corporation
• Body	Kolkata Municipal Corporation
• Mayor	Firhad Hakim
• Deputy Mayor	Atin Ghosh
• Sheriff	Mani Shankar Mukherjee
• Police commissioner	Manoj Kumar Verma
Area
• Megacity	206.08 km (79.151 sq mi)
• Metro	1,886.67 km (728.45 sq mi)
Elevation	9 m (30 ft)
Population
• Megacity	2,011 census: 4,496,694 2,023 estimate: 6,200,000
• Density	30,000/km (80,000/sq mi)
• Metro	2,011 census: 14,112,536 (metro) 14,617,882 (Extended UA) 2,023 estimate: 15,333,000 (metro)
• City rank	7th in India
• Metro rank	3rd in India; 2nd in Bengal Region; 13th in Asia; 16th in the world
Demonyms	Kolkatan Calcuttan
Languages
• Official	Bengali • English
Time zone	UTC+05:30 (IST)
PIN	700 xxx
Telephone code	+91 33
Vehicle registration	WB-01 to WB-10
UN/LOCODE	IN CCU
Metro GDP (PPP)	$220 billion (2024)
HDI (2004)	0.780 (High)
International airports	Netaji Subhas Chandra Bose International Airport (CCU)
Transit	Rapid Transit: Kolkata Metro Commuter rail: Kolkata Suburban Railway Other(s): Kolkata Tram
Metropolitan Planning Authority	Kolkata Metropolitan Development Authority
Website	kmcgov.in
UNESCO World Heritage Site
Official name	Durga Puja in Kolkata
Type	Cultural
Designated	2021 (16th Committee of UNESCO for safeguarding of the Intangible Cultural Heritage)
Reference no.
Region	Southern Asia
Notability	First in Asia under "Intangible Cultural Heritage of Humanity" category

Kolkata, also known as Calcutta (its official name until 2001), is the capital and largest city of the Indian state of West Bengal. It lies on the eastern bank of the Hooghly River, 80 km (50 mi) west of the border with Bangladesh. It is the primary financial and commercial centre of eastern and northeastern India. Kolkata is the seventh most populous city in India with an estimated city proper population of 4.5 million (0.45 crore) while its metropolitan region Kolkata Metropolitan Area is third most populous metropolitan region of India with a metro population of over 15 million (1.5 crore). Kolkata is regarded by many sources as the cultural capital of India and a historically and culturally significant city in the historic region of Bengal.

The three villages that predated Calcutta were ruled by the Nawab of Bengal under Mughal suzerainty. After the Nawab granted the East India Company a trading licence in 1690, the area was developed by the Company into Fort William. Nawab Siraj ud-Daulah occupied the fort in 1756 but was defeated at the Battle of Plassey in 1757, after his general Mir Jafar mutinied in support of the company, and was later made the Nawab for a brief time. Under company and later crown rule, Calcutta served as the de facto capital of India until 1911. Calcutta was the second largest city in the British Empire, after London, and was the centre of bureaucracy, politics, law, education, science and the arts in India. The city was associated with many of the figures and movements of the Bengali Renaissance. It was the hotbed of the Indian nationalist movement.

The partition of Bengal in 1947 affected the fortunes of the city. Following independence in 1947, Kolkata, which was once the premier centre of Indian commerce, culture, and politics, suffered many decades of political violence and economic stagnation before it rebounded. In the late 20th century, the city hosted the government-in-exile of Bangladesh during the Bangladesh Liberation War in 1971. It was also flooded with Hindu refugees from East Bengal (present-day Bangladesh) in the decades following the 1947 partition of India, transforming its landscape and shaping its politics. The city was overtaken by Mumbai (formerly Bombay) as India's largest city.

A demographically diverse city, the culture of Kolkata features idiosyncrasies that include distinctively close-knit neighbourhoods (paras) and freestyle conversations (adda). Kolkata's architecture includes many imperial landmarks, including the Victoria Memorial, Howrah Bridge and the Grand Hotel. The city's heritage includes India's only Chinatown and remnants of Jewish, Armenian, Greek and Anglo-Indian communities. The city is closely linked with Bhadralok culture and the Zamindars of Bengal, including Bengali Hindu, Bengali Muslim and tribal aristocrats. The city is often regarded as India's cultural capital.

Kolkata is home to institutions of national importance, including the Academy of Fine Arts, the Asiatic Society, the Indian Museum and the National Library of India. The University of Calcutta, first modern university in south Asia and its affiliated colleges produced many leading figures of South Asia. It is the centre of the Indian Bengali film industry, which is known as Tollywood. Among scientific institutions, Kolkata hosts the Geological Survey of India, the Botanical Survey of India, the Calcutta Mathematical Society, the Indian Science Congress Association, the Zoological Survey of India, the Horticultural Society, the Institution of Engineers, the Anthropological Survey of India and the Indian Public Health Association. The Port of Kolkata is India's oldest operating port. Four Nobel laureates and two Nobel Memorial Prize winners are associated with the city. Though home to major cricketing venues and franchises, Kolkata stands out in India for being the country's centre of association football. Kolkata is known for its grand celebrations of the Hindu festival of Durga Puja, which is recognized by UNESCO for its importance to world heritage. Kolkata is also known as the ''City of Joy''.

Etymology

The word Kolkata (Bengali: কলকাতা [kolˈkata]) derives from Kôlikata (Bengali: কলিকাতা [ˈkɔliˌkata]), the Bengali language name of one of three villages that predated the arrival of the British; the other two villages were Sutanuti and Govindapur.

There are several explanations for the etymology of this name:

• Kolikata is thought to be a variation of Kalikkhetrô (Bengali: কালীক্ষেত্র [ˈkaliˌkʰetrɔ]), meaning 'Field of Kali'. Similarly, it can be a variation of Kalikshetra (Sanskrit: कालीक्षेत्र, lit. 'area of Goddess Kali').
• Another theory is that the name derives from Kalighat.
• Alternatively, the name may have been derived from the Bengali term kilkila (Bengali: কিলকিলা), or 'flat area'.
• The name may have its origin in the words khal (Bengali: খাল [ˈkʰal]) meaning 'canal', followed by kaṭa (Bengali: কাটা [ˈkaʈa]), which may mean 'dug'.
• According to another theory, the area specialised in the production of quicklime or koli chun (Bengali: কলি চুন [ˈkɔliˌtʃun]) and coir or kata (Bengali: কাতা [ˈkata]); hence, it was called Kolikata).

Although the city's name has always been pronounced Kolkata or Kôlikata in Bengali, the anglicised form Calcutta was the official name until 2001, when it was changed to Kolkata in order to match Bengali pronunciation.

History

The discovery and archaeological study of Chandraketugarh, 35 km (22 mi) north of Kolkata, provide evidence that the region in which the city stands has been inhabited for over two millennia. Kolkata or Kalikata in its earliest mentions, is described to be a village surrounded with jungle on the bank of river Ganga as a renowned port, commercial hub and a hindu pilgrimage site for Kalighat Temple. The first mention of the Kalikata village was found in Bipradas Pipilai's Manasa Vijay (1495), where he describes how Chand Sadagar used to stop in Kalighat to worship Goddess Kali during his path to trade voyage. Later Kalikata was also found to be mentioned in Mukundaram Chakrabarti's Chandimangal (1594), Todar Mal's taxation-list in 1596 and Krishnaram Das's Kalikamangal (1676–77). Kalighat was then considered a safe place for businessmen. They used to carry on trade through the Bhagirathi and took shelter there at night. Kolkata's recorded history began in 1690 with the arrival of the English East India Company, which was consolidating its trade business in Bengal. Job Charnock is often regarded as the founder of the city; however, in response to a public petition, the Calcutta High Court ruled in 2003 that the city does not have a founder. The area occupied by the present-day city encompassed three villages: Kalikata, Gobindapur and Sutanuti. Kalikata was a fishing village, where a handful of merchants began their operations by building a factory; Sutanuti was a riverside weavers' village; and Gobindapur was a trading post for Indian merchant princes. These villages were part of an estate belonging to the Sabarna Roy Choudhury family of zamindars. The estate was sold to the East India Company in 1698.

In 1712, the British completed the construction of Fort William, located on the east bank of the Hooghly River to protect their trading factory. Facing frequent skirmishes with French forces, the British began to upgrade their fortifications in 1756. The Nawab of Bengal, Siraj-ud-Daulah, condemned the militarisation and tax evasion by the company. His warning went unheeded, and the Nawab attacked; his capture of Fort William led to the killings of several East India company officials in the Black Hole of Calcutta. A force of Company soldiers (sepoys) and British troops led by Robert Clive recaptured the city the following year. Per the 1765 Treaty of Allahabad following the battle of Buxar, East India company was appointed imperial tax collector of the Mughal emperor in the province of Bengal, Bihar and Orissa, while Mughal-appointed Nawabs continued to rule the province. Declared a presidency city, Calcutta became the headquarters of the East India Company by 1773.

In 1793, ruling power of the Nawabs were abolished, and East India company took complete control of the city and the province. In the early 19th century, the marshes surrounding the city were drained; the government area was laid out along the banks of the Hooghly River. Richard Wellesley, Governor-General of the Presidency of Fort William between 1797 and 1805, was largely responsible for the development of the city and its public architecture. Throughout the late 18th and 19th century, the city was a centre of the East India Company's opium trade. A census in 1837 records the population of the city proper as 229,700, of which the British residents made up only 3,138. The same source says another 177,000 resided in the suburbs and neighbouring villages, making the entire population of greater Calcutta 406,700.

In 1864, a typhoon struck the city and killed about 60,000 in Kolkata.

By the 1850s, Calcutta had two areas: White Town, which was primarily British and centred on Chowringhee and Dalhousie Square; and Black Town, mainly Indian and centred on North Calcutta. The city underwent rapid industrial growth starting in the early 1850s, especially in the textile and jute industries; this encouraged British companies to massively invest in infrastructure projects, which included telegraph connections and Howrah. The coalescence of British and Indian culture resulted in the emergence of a new babu class of urbane Indians, whose members were often bureaucrats, professionals, newspaper readers, and Anglophiles; they usually belonged to upper-caste Hindu communities. In the 19th century, the Bengal Renaissance brought about an increased sociocultural sophistication among city denizens. In 1883, Calcutta was host to the first national conference of the Indian National Association, which was the first avowed nationalist organisation in India.

The partition of Bengal in 1905 along religious lines led to mass protests, making Calcutta a less hospitable place for the British. The capital was moved to New Delhi in 1911. Calcutta continued to be a centre for revolutionary organisations associated with the Indian independence movement. The city and its port were bombed several times by the Japanese between 1942 and 1944, during World War II. Millions starved to death during the Bengal famine of 1943 (at the same time of the war) due to a combination of military, administrative, and natural factors. Demands for the creation of a Muslim state led in 1946 to an episode of communal violence that killed over 4,000. The partition of India led to further clashes and a demographic shift—many Muslims left for East Bengal (later East Pakistan, present day Bangladesh), while hundreds of thousands of Hindus fled into the city.

During the 1960s and 1970s, severe power shortages, strikes and a violent Marxist–Maoist movement by groups known as the Naxalites damaged much of the city's infrastructure, resulting in economic stagnation. During East Pakistan's secessionist war of independence in 1971, the city was home to the government-in-exile of Bangladesh. During the war, refugees poured into West Bengal and strained Kolkata's infrastructure. The Eastern Command of the Indian military, which is based in Fort William, played a pivotal role in the Indo-Pakistani war of 1971 and securing the surrender of Pakistan. During the mid-1980s, Mumbai (then called Bombay) overtook Kolkata as India's most populous city. In 1985, Prime Minister Rajiv Gandhi dubbed Kolkata a "dying city" in light of its socio-political woes. In the period 1977–2011, West Bengal was governed from Kolkata by the Left Front, which was dominated by the Communist Party of India (CPM). It was the world's longest-serving democratically elected communist government, during which Kolkata was a key base for Indian communism. The city's economic recovery gathered momentum after the 1990s, when India began to institute pro-market reforms. Since 2000, the information technology (IT) services sector has revitalised Kolkata's stagnant economy. The city is also experiencing marked growth in its manufacturing base. In the 2011 West Bengal Legislative Assembly election, Left Front was succeeded by the Trinamool Congress.

Geography

Spread roughly meridionally along the east bank of the Hooghly River, Kolkata sits within the lower Ganges Delta of eastern India approximately 75 km (47 mi) west of the international border with Bangladesh; the city's elevation is 1.5–9 m (5–30 ft). Much of the city was originally a wetland that was reclaimed over the decades to accommodate a burgeoning population. The remaining undeveloped areas, known as the East Kolkata Wetlands, were designated a "wetland of international importance" by the Ramsar Convention (1975). As with most of the Indo-Gangetic Plain, the soil and water are predominantly alluvial in origin. Kolkata is located over the "Bengal basin", a pericratonic tertiary basin. Bengal basin comprises three structural units: shelf or platform in the west; central hinge or shelf/slope break; and deep basinal part in the east and southeast. Kolkata is located atop the western part of the hinge zone which is about 25 km (16 mi) wide at a depth of about 45,000 m (148,000 ft) below the surface. The shelf and hinge zones have many faults, among them some are active. Total thickness of sediment below Kolkata is nearly 7,500 m (24,600 ft) above the crystalline basement; of these the top 350–450 m (1,150–1,480 ft) is Quaternary, followed by 4,500–5,500 m (14,760–18,040 ft) of Tertiary sediments, 500–700 m (1,640–2,300 ft) trap wash of Cretaceous trap and 600–800 m (1,970–2,620 ft) Permian-Carboniferous Gondwana rocks. The quaternary sediments consist of clay, silt and several grades of sand and gravel. These sediments are sandwiched between two clay beds: the lower one at a depth of 250–650 m (820–2,130 ft); the upper one 10–40 m (30–130 ft) in thickness. According to the Bureau of Indian Standards, on a scale ranging from I to V in order of increasing susceptibility to earthquakes, the city lies inside seismic zone III.

Climate

Kolkata is subject to a tropical savanna climate that is designated Aw under the Köppen climate classification. According to a United Nations Development Programme report, its wind and cyclone zone is "very high damage risk".

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Temperature

The annual mean temperature is 26.8 °C (80.2 °F); monthly mean temperatures are 19–30 °C (66–86 °F). Summers (March–June) are hot and humid, with temperatures in the low 30s Celsius; during dry spells, maximum temperatures sometime exceed 40 °C (104 °F) in May and June. Winter lasts for roughly 2+1⁄2 months, with seasonal lows dipping to 9–11 °C (48–52 °F) in December and January. May is the hottest month, with daily temperatures ranging from 27–37 °C (81–99 °F); January, the coldest month, has temperatures varying from 12–23 °C (54–73 °F). The highest recorded temperature is 43.9 °C (111.0 °F), and the lowest is 5 °C (41 °F). The winter is mild and very comfortable weather pertains over the city throughout this season. Often, in April–June, the city is struck by heavy rains or dusty squalls that are followed by thunderstorms or hailstorms, bringing cooling relief from the prevailing humidity. These thunderstorms are convective in nature, and are known locally as kal bôishakhi (কালবৈশাখী), or "Nor'westers" in English.

Rainfall

Rains brought by the Bay of Bengal branch of the south-west summer monsoon lash Kolkata between June and September, supplying it with most of its annual rainfall of about 1,850 mm (73 in). The highest monthly rainfall total occurs in July and August. In these months often incessant rain for days brings life to a stall for the city dwellers. The city receives 2,107 hours of sunshine per year, with maximum sunlight exposure occurring in April. Kolkata has been hit by several cyclones; these include systems occurring in 1737 and 1864 that killed thousands. More recently, Cyclone Aila in 2009 and Cyclone Amphan in 2020 caused widespread damage to Kolkata by bringing catastrophic winds and torrential rainfall.

Environmental issues

Pollution is a major concern in Kolkata. As of 2008, sulphur dioxide and nitrogen dioxide annual concentration were within the national ambient air quality standards of India, but respirable suspended particulate matter levels were high, and on an increasing trend for five consecutive years, causing smog and haze. Severe air pollution in the city has caused a rise in pollution-related respiratory ailments, such as lung cancer.

Cityscape and urban structure

Kolkata, which is under the jurisdiction of the Kolkata Municipal Corporation (KMC), has an area of 206.08 km (80 sq mi). The east–west dimension of the city is comparatively narrow, stretching from the Hooghly River in the west to roughly the Eastern Metropolitan Bypass in the east—a span of 9–10 km (5.6–6.2 mi). The north–south distance is greater, and its axis is used to section the city into North, Central, South and East Kolkata. North Kolkata is the oldest part of the city. Characterised by 19th-century architecture and narrow alleyways, it includes areas such as Jorasanko, Rajabazar, Maniktala, Ultadanga, Shyambazar, Shobhabazar, Bagbazar, Cossipore, Sinthee etc. The north suburban areas like Dum Dum, Baranagar, Belgharia, Sodepur, Khardaha, New Barrackpore, Madhyamgram, Barrackpore, Barasat etc. are also within the city of Kolkata (as a metropolitan structure).

Central Kolkata hosts the central business district. It contains B. B. D. Bagh, formerly known as Dalhousie Square, and the Esplanade on its east; Rajiv Gandhi Sarani is on its west. The West Bengal Secretariat, General Post Office, Reserve Bank of India, Calcutta High Court, Lalbazar Police Headquarters and several other government and private offices are located there. Another business hub is the area south of Park Street, which comprises thoroughfares such as Jawahar Lal Nehru Road, Abanindranath Thakur Sarani, Dr. Martin Luther King Sarani, Dr. Upendra Nath Brahmachari Sarani, Shakespeare Sarani and Acharay Jagadish Chandra Basu Road.

South Kolkata developed after India gained independence in 1947; it includes upscale neighbourhoods such as Bhowanipore, Alipore, Ballygunge, Kasba, Dhakuria, Santoshpur, Garia, Golf Green, Tollygunge, New Alipore, Behala, Barisha etc. The south suburban areas like Maheshtala, Budge Budge, Rajpur Sonarpur, Baruipur etc. are also within the city of Kolkata (as a metropolitan structure). The Maidan is a large open field in the heart of the city that has been called the "lungs of Kolkata" and accommodates sporting events and public meetings. The Victoria Memorial and Kolkata Race Course are located at the southern end of the Maidan. Among the other parks are Central Park in Bidhannagar and Millennium Park on Rajiv Gandhi Sarani, along the Hooghly River.

Metropolitan area and satellite cities

The Kolkata metropolitan area is spread over 1,886.67 km (728.45 sq mi) and comprises 4 municipal corporations (including Kolkata Municipal Corporation), 37 local municipalities and 24 panchayat samitis, as of 2011. The urban agglomeration encompassed 72 cities and 527 towns and villages, as of 2006. Suburban areas in the Kolkata metropolitan area incorporate parts of the following districts: North 24 Parganas, South 24 Parganas, Howrah, Hooghly and Nadia.

Two planned townships in the greater Kolkata region are Bidhannagar, also known as Salt Lake City and located north-east of the city; and Rajarhat, also called New Town and located east of Bidhannagar. In the 2000s, Sector 5 in Bidhannagar developed into a business hub for information technology and telecommunication companies. Both Bidhannagar and New Town are situated outside the Kolkata Municipal Corporation limits, in their own municipal corporations or authorities.

Economy

Kolkata is the commercial and financial hub of East and Northeast India and home to the Calcutta Stock Exchange. It is a major commercial and military port, and is one of five cities in eastern India (alongside Bhubaneswar, Guwahati, Imphal, and Kushinagar) to have an international airport. Once India's leading city, Kolkata experienced a steady economic decline in the decades following India's independence due to steep population increases and a rise in militant trade-unionism, which included frequent strikes that were backed by left-wing parties. From the 1960s to the late 1990s, several factories were closed and businesses relocated. The lack of capital and resources added to the depressed state of the city's economy and gave rise to an unwelcome sobriquet: the "dying city". The city's fortunes improved after the Indian economy was liberalised in the 1990s and changes in economic policy were enacted by the West Bengal state government. Recent estimates of the economy of Kolkata's metropolitan area have ranged from $150 to $250 billion (PPP GDP), and have ranked it third-most productive metro area of India.

Flexible production has been the norm in Kolkata, which has an informal sector that employs more than 40% of the labour force. One unorganised group, roadside hawkers, generated business worth ₹87.72 billion (equivalent to ₹300 billion or US$3.5 billion in 2023) in 2005. As of 2001, around 0.81% of the city's workforce was employed in the primary sector (agriculture, forestry, mining, etc.); 15.49% worked in the secondary sector (industrial and manufacturing); and 83.69% worked in the tertiary sector (service industries). As of 2003, the majority of households in slums were engaged in occupations belonging to the informal sector; 36.5% were involved in servicing the urban middle class (as maids, drivers, etc.) and 22.2% were casual labourers. About 34% of the available labour force in Kolkata slums were unemployed. According to one estimate, almost a quarter of the population live on less than ₹27 (32¢ US) per day.

Major manufacturing companies in the city are Alstom, Larsen & Toubro, Fosroc, Videocon. As in many other Indian cities, information technology became a high-growth sector in Kolkata starting in the late 1990s; the city's IT sector grew at 70% per annum—a rate that was twice the national average. The 2000s saw a surge of investments in the real estate, infrastructure, retail, and hospitality sectors; several large shopping malls and hotels were launched. Companies such as ITC Limited, CESC Limited, Exide Industries, Emami, Eveready Industries India, Lux Industries, Rupa Company, Berger Paints, Birla Corporation, Britannia Industries and Purushottam Publishers are headquartered in the city. Philips India, PwC India, Tata Global Beverages, and Tata Steel have their registered office and zonal headquarters in Kolkata. Kolkata hosts the headquarters of two major banks: UCO Bank, and Bandhan Bank. Reserve Bank of India, State Bank of India have its eastern zonal office in Kolkata. India Government Mint, Kolkata is one of the four mints in India. Some of the oldest public sector companies are headquartered in the city such as the Coal India, National Insurance Company, Garden Reach Shipbuilders & Engineers, Tea Board of India, Geological Survey of India, Zoological Survey of India, Botanical Survey of India, Jute Corporation of India, National Test House, Hindustan Copper and the Ordnance Factories Board of the Indian Ministry of Defence.

Demographics

Population

The demonym for residents of Kolkata are Calcuttan and Kolkatan. According to provisional results of the 2011 national census, Kolkata district, which occupies an area of 185 km (71 sq mi), had a population of 4,486,679; its population density was 24,252/km (62,810/sq mi). This represents a decline of 1.88% during the decade 2001–11. The sex ratio is 899 females per 1000 males—lower than the national average. The ratio is depressed by the influx of working males from surrounding rural areas, from the rest of West Bengal; these men commonly leave their families behind. Kolkata's literacy rate of 87.14% exceeds the national average of 74%. The final population totals of census 2011 stated the population of city as 4,496,694. The urban agglomeration had a population of 14,112,536 in 2011.

As of 2003, about one-third of the population, or 15 lakh (1.5 million) people, lived in 3,500 unregistered squatter-occupied and 2,011 registered slums. The authorised slums (with access to basic services like water, latrines, trash removal by the Kolkata Municipal Corporation) can be broadly divided into two groups—bustees, in which slum dwellers have some long term tenancy agreement with the landowners; and udbastu colonies, settlements which had been leased to refugees from present-day Bangladesh by the government. The unauthorised slums (devoid of basic services provided by the municipality) are occupied by squatters who started living on encroached lands—mainly along canals, railway lines and roads. According to the 2005 National Family Health Survey, around 14% of the households in Kolkata were poor, while 33% lived in slums, indicating a substantial proportion of households in slum areas were better off economically than the bottom quarter of urban households in terms of wealth status. Mother Teresa was awarded the Nobel Peace Prize for founding and working with the Missionaries of Charity in Kolkata—an organisation "whose primary task was to love and care for those persons nobody was prepared to look after".

Language

Languages spoken in Kolkata city (2011 census)

Bengali, the official state language, is the dominant language in Kolkata. English is also used, particularly by the white-collar workforce. Hindi and Urdu are spoken by a sizeable minority. Bengali Hindus form the majority of Kolkata's population; Marwaris, Biharis and Urdu-speaking Muslims compose large minorities. Among Kolkata's smaller communities are Chinese, Tamils, Nepalis, Pathans/Afghans (locally known as Kabuliwala) Odias, Telugus, Gujaratis, Anglo-Indians, Armenians, Bengali Muslims, Greeks, Tibetans, Maharashtrians, Konkanis, Malayalees, Punjabis and Parsis. The number of Armenians, Greeks, Jews and other foreign-origin groups declined during the 20th century. The Jewish population of Kolkata was 5,000 during World War II, but declined after Indian independence and the establishment of Israel; as of 2003, there were 25 Jews in the city. India's sole Chinatown is in eastern Kolkata; once home to 20,000 ethnic Chinese, its population dropped to around 2,000, as of 2009, as a result of multiple factors including repatriation and denial of Indian citizenship following the 1962 Sino-Indian War, and immigration to foreign countries for better economic opportunities. The Chinese community traditionally worked in the local tanning industry and ran Chinese restaurants.

Religion

According to the 2011 census, 76.51% of the population is Hindu, 20.60% Muslim, 0.88% Christian, 0.47% Jain, 0.31% Sikh and 0.11% Buddhist. 1.12% did not state a religion in the census. Kolkata reported 67.6% of Special and Local Laws crimes registered in 35 large Indian cities during 2004.

Religious groups in Kolkata City (1872−2011)

Religious group	1872		1881		1891		1901		1911		1921		1931		1941		2011
	Pop.	%	Pop.	%	Pop.	%	Pop.	%	Pop.	%	Pop.	%	Pop.	%	Pop.	%	Pop.	%
Hinduism	443,970	62.84%	429,180	62.69%	488,532	65.92%	617,303	65.04%	695,052	66.62%	751,619	69.77%	822,293	68.71%	1,531,512	72.62%	3,440,290	76.51%
Islam	234,850	33.24%	221,013	32.28%	218,158	29.44%	286,576	30.19%	298,986	28.66%	269,749	25.04%	311,155	26%	497,535	23.59%	926,414	20.6%
Christianity	25,352	3.59%	30,478	4.45%	29,904	4.03%	38,515	4.06%	40,511	3.88%	40,376	3.75%	47,484	3.97%	51,991	2.47%	39,758	0.88%
Buddhism	1,012	0.14%	1,705	0.25%	2,200	0.3%	2,968	0.31%	2,461	0.24%	3,468	0.32%	3,021	0.25%	3,339	0.16%	4,771	0.11%
Judaism	—	—	986	0.14%	1,399	0.19%	1,889	0.2%	1,920	0.18%	1,820	0.17%	1,829	0.15%	2,585	0.12%	—	—
Sikhism	—	—	284	0.04%	287	0.04%	162	0.02%	1,134	0.11%	1,484	0.14%	4,705	0.39%	8,456	0.4%	13,849	0.31%
Jainism	—	—	143	0.02%	497	0.07%	1,241	0.13%	1,813	0.17%	5,670	0.53%	3,185	0.27%	6,689	0.32%	21,178	0.47%
Zoroastrianism	—	—	142	0.02%	167	0.02%	295	0.03%	470	0.05%	620	0.06%	1,199	0.1%	1,430	0.07%	—	—
Tribal	—	—	—	—	0	0%	17	0%	67	0.01%	767	0.07%	426	0.04%	1,688	0.08%	—	—
Confucian	—	—	—	—	—	—	178	0.02%	—	—	—	—	—	—	—	—	—	—
Others	1,327	0.19%	727	0.11%	0	0%	0	0%	2,607	0.25%	1,597	0.15%	1,437	0.12%	3,766	0.18%	50,434	1.12%
Total population	706,511	100%	684,658	100%	741,144	100%	949,144	100%	1,043,307	100%	1,077,264	100%	1,196,734	100%	2,108,891	100%	4,496,694	100%