By how much did India's population grow in the decade from 2001 to 2011?

Explanation

1. 01

   The 2011 Census recorded decadal growth of about 17.7%, the lowest since independence at that time.

2. 02

   The previous decade, 1991 to 2001, had grown by about 21.5%, and the fastest decade was 1961 to 1971, at about 24.8%.