To determine during which decade the population of India recorded a negative growth rate, we must look at historical population growth trends in India.
Before 1921, India experienced different patterns in population growth. The period between 1911 and 1921 is notable because it is the only decade in the 20th century where India recorded a negative growth rate.
Therefore, the correct answer is 1911-21.
Choose the option which shows common feature in the relationship given in each question.
Rourkela Bokaro: Durgapur