The correct answer is: d) All of the above.
The Census of India is a decennial census of India, conducted by the Office of the Registrar General and Census Commissioner, India. The census is used to collect data on the population, households, and housing units in India. The census is conducted in two phases: the houselisting and housing census phase and the population enumeration phase.
The houselisting and housing census phase is conducted in the first few months of the census year. During this phase, enumerators visit each household in the country and collect data on the household’s structure, amenities, and ownership.
The population enumeration phase is conducted in the last few months of the census year. During this phase, enumerators visit each household in the country and collect data on the household’s members, including their age, sex, education, occupation, and religion.
The Post-Enumeration Survey is a survey that is conducted after the census to assess the quality of the census data. The survey is conducted by a sample of households and collects data on the same topics as the census. The Post-Enumeration Survey is used to identify any errors in the census data and to improve the quality of the data for future censuses.