1. Population census is the total process of collecting, compiling, analyzing or otherwise disseminating demographic, economic and social data pertaining at a specific time, of all persons in a country or a well defined part of a country.
2. Census is being taken in an interval of ten years.
3. The data collected through the census are used for administration, planning, policy making, management and evaluation of various programmes by the government.
4. In India 1st census was carried out in the year 1872.
5. But the first complete and synchronous census was conducted in 1881 The 2011 census represents the fifteenth census of India.
