Population 

People ate the nation’s most valuable resource. A well-educated, healthy population provides potential power to the nation. The people are important to develop the economy and society, they make resources and use them. The people are themselves a resource with varying qualities.

A census is an official enumeration (numbering) of population done periodically. The first census in India (partial) was done in 1872. While, the first complete census was done in 1881. It is done every 10 years. The recent census was done in 2011. The census of India provides information regaling the population.