The decadal and annual growth rates of population in India are both very high and steadily increasing over time." Substantiate the statement.

Explanation

The decadal and annual growth rate of population in India:
The decades between 1921 to 1951 recorded steady growth of population. Overall improvement in health and sanitation minimized the mortality rate but the birth rate remained high.
In the next three decades 1951-81 are known as the period of population explosion. It was caused by a rapid fall in the mortality rate but birth rate remained high. Average annual growth rate was very high as the living conditions of people improved due to developmental activities resulting in high natural increase in birth rate and thus, growth rate remained high. International migration also contributed to the high growth rate of population.
Since 1981 till date, population growth rate has been high although a downward trend of crude birth rate has started.