The 1981 census of India was the 12th in a series of censuses held in India every decade since 1872.[1] The population of India was counted as 685,184,692 people.[2]
Population by state
Population of Indian states and union territories in 1981
^Vijayanunni, M. (26–29 August 1998). "Planning for the 2001 Census of India based on the 1991 Census" (PDF). 18th Population Census Conference. Honolulu, Hawaii, US: Association of National Census and Statistics Directors of America, Asia, and the Pacific. Archived from the original (PDF) on 19 November 2008. Retrieved 25 March 2021.
^V. S. Verma (18 April 1988). "Census of India 1981 - A Hand Book of Population Statistics" (PDF). Archived (PDF) from the original on 19 May 2021. Retrieved 19 May 2021.
^V. S. Verma (4 July 1984). "Household Population by Religion of Head of Household, Series-1, Paper 3 of 1984, India". Retrieved 1 December 2021.