What is the source of population …

In India, Population data is collected through census operation which held every 10 years in our country. The spatial pattern of population distribution is very uneven. As some areas are sparsely populated whereas others are dense. These states can be categorised into three categories:

States with High Population Uttar Pradesh, (highest population), Maharashtra, Bihar, West Bengal, Andhra Pradesh, Tamil Nadu, Madhya Pradesh, Rajasthan,
Karnataka and Gujarat. These states together account for 76% of the population.

States with Moderate population Assam, Haryana, Jharkhand, Chhattisgarh, Kerala, Punjab, Goa.

States with Low population Hilly and tribal areas like Jammu and Kashmir, Uttarakhand, all North Eastern states (except Assam) and Union Territories excluding Delhi.

The population is mainly affected by climate, terrain and availability of water. For example, the North Indian Plains, deltas and coastal plains are densely populated, whereas the mountainous areas and interior areas of central and southern India have relatively low population.

Besides these, the evolution of settled and urbanisation are the socio-economic and historical factors of distribution of population.