<P> The decennial Census of India has been conducted 15 times, As of 2011 . While it has been conducted every 10 years, beginning in 1872, the first complete census was taken in the year 1881 . Post 1949, it has been conducted by the Registrar General and Census Commissioner of India under the Ministry of Home Affairs, Government of India . All the census since 1951 are conducted under 1948 Census of India Act . The last census was held in 2011 and next census will held in 2021 . </P> <Ul> <Li> Overview </Li> <Li> 1871 Census of india </Li> <Li> 1881 Census of India </Li> <Li> 1891 Census of India </Li> <Li> 1901 Census of India </Li> <Li> 1911 Census of India </Li> <Li> 1921 Census of India </Li> <Li> 1931 Census of India </Li> <Li> 1941 Census of India </Li> </Ul>

Which government body does population calculation in india