The correct answer is b) 1951 Census.
The first census of India after independence was conducted in 1951. The census was conducted by the Government of India and was the first to be conducted after the country’s independence from British rule. The census was conducted to collect data on the population of India, including its size, distribution, and characteristics. The census was also used to collect data on the economy of India, including its production, trade, and employment. The census was a major undertaking and involved the participation of millions of people. The census was a success and provided valuable data on the population and economy of India.
The other options are incorrect because they are not the first census of India after independence. The 1941 census was conducted before India’s independence, the 1961 census was the second census after independence, and the 1971 census was the third census after independence.