Per year growth in India's population according to the $1991$ census is (in $\%$)

Give scientific reasons: Population rise is an unavoidable evil.

Human population in India reached the $1$ billion mark by the year . . . . . . .

The minimum number of females per $1000$ males in India (as per the $2011$ Census) is found in which of the following union territories?

What are the probable factors that contributed to the population explosion in India?

At the time of independence,our population was approximately ........... billion,which reached near ............ billion in the year $2000$ and crossed ........... billion in $2011$.