In which of the following decades, there was a negative growth rate in Indian population?

1911-1921

- During the period from 1911 to 1921, India experienced a decrease in its population, resulting in a negative growth rate.

- The primary reason for this decline was the devastating impact of the influenza pandemic, also known as the "Spanish flu," which swept across the world during those years.

- The Spanish flu pandemic had a significant toll on India, leading to a substantial reduction in population during that decade.