Question

The primary source of population data on size and distribution as well as on structure and characteristics is

Answer 1

Census of India

As part of an integrated programme of data collection, the population census is the primary source of basic national population data required for administrative purposes and for many aspects of economic and social research and planning.

Answer 2

⏺️First hand data which are collected by census, vital registration, sample survey, administrative records, population register, etc are primary sources of population data.

⏺️Census is the main source of demographic data. Vital Registration System (VRS) is also known as Civil Registration System.