Census 2011 was the ______ National Census of India.

15th

The correct answer is Option (4) → 15th

The Census of India conducted in 2011 was the 15th National Census of the country. It is a comprehensive survey that gathers demographic, social, and economic data about the population of India. The census provides crucial information for planning and policymaking in various sectors, including healthcare, education, infrastructure, and social welfare.