The correct answer is (c). The most recent census in India was conducted in 2021. The census is a survey of the population of a country or region. It is used to collect data on the population’s size, age, sex, education, employment, and other characteristics. The census is conducted every 10 years in India. The 2021 census was the 15th census to be conducted in India. The census was conducted by the Office of the Registrar General and Census Commissioner of India. The census data is used to plan for the development of the country. It is also used to allocate resources to different parts of the country. The census data is also used to study the population’s characteristics and trends.
Option (a) is incorrect because the 2001 census was conducted in the year 2001. Option (b) is incorrect because the 2011 census was conducted in the year 2011. Option (d) is incorrect because the 2023 census has not yet been conducted.