The first population census of India was conducted in 1872 under the British colonial administration.
The 1872 census covered only British-administered territories in India and did not include the princely states, which were not under direct British control. As a result, it did not provide a complete picture of the subcontinent's population.
The census collected basic demographic information such as population numbers, gender, and age. However, it did not collect detailed socio-economic data or information on religion, caste, or other factors that were included in later censuses.
The census was conducted through a manual enumeration process. Enumerators visited households and collected data by going door-to-door.
The 1872 census laid the foundation for future population censuses in India. Subsequent censuses expanded their scope and coverage, providing more detailed and comprehensive information.
Subsequent population censuses in India have been conducted at ten-year intervals, providing a wealth of information about the country's demographics, socio-economic conditions, and other important factors.