The first census of the Indian Republic began on February 10, 1951.
[6] National Register of Citizens for Assam (NRC) was prepared soon after the census.
[7][8] In 1951, at the time of the first population census, just 18% of Indians were literate while life expectancy was 32 years.
[10] Languages of India in 1951[11] Separate figures for Hindi, Urdu, and Punjabi were not issued, due to the partition 1947 and fact that returns were intentionally recorded incorrectly in states such as East Punjab, Himachal Pradesh, Delhi, PEPSU, and Bilaspur.
Just after independence and the partition of India, the proportion of Hindus rose to around 85%.