Population explosion:

• A rapid increase in the size of population due to factors like decline in infant mortality, increase in life expectancy, etc. is known as population explosion.
• In case of India, its death-rate has fallen rapidly whereas birth-rate has not fallen to that extent. This has resulted in population explosion.
• Population rise is the most important and biggest reason for the various problems faced by the world. The world has never ever witnessed such a fast rate of growth of population as in the present period and India is not an exception.

Population explosion in India:

• Our population has continuously increased between the years 1931 and 2011.
• In 1951, the population of India was 36.1 crores. This increased to 121.02 crores in 2011. This means that within the span of 60 years India’s population has increased by 85.7 crores with an average growth rate of around 2.5 percent. 4
• In Indian context, a very high population with a quite high growth rate of population especially after 1970 is known as population explosion.