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Arya Samaj was established in Uganda in 1908 by Pandit Purnanand. In 1929 a large building was constructed by the Samaj. The Uganda Arya Samaj was one of the most active in East Africa until the political revolution led by Idi Amin forced all the people of Indian origin to leave Uganda and the work of Arya Samaj came to an end.
References
Vidyalankar, Nardev; Manohar Somera (1975). Arya Samaj and Indians abroad. New Delhi, India: Sarvadeshik Arya Pratinidhi Sabha. p. 101.