Correct option is A
The correct answer is (a) 10
Explanation:
• The Census of India is the largest administrative and statistical exercise in the world, conducted once every 10 years.
• The first non-synchronous census was conducted in 1872 under Lord Mayo, but the first synchronous (complete) census was held in 1881 under Lord Ripon.
• It is conducted by the Office of the Registrar General and Census Commissioner, which falls under the Ministry of Home Affairs.
• The census collects data on demography, literacy, religion, caste (SC/ST), and economic activity.
• The data collected is vital for delimitation of constituencies and government planning.
Information Booster:
• The Census Act of 1948 provides the legal framework for conducting the census.
• The 2011 Census was the 15th National Census of India.