India's Population to Surpass China's Soon: Experts Predict.

India is set to surpass China as the world's most populous nation, but demographers are unsure exactly when it will happen due to the uncertainty of population estimates. Mathematical calculations suggest it could be in the middle of April, but the numbers are fuzzy and could be revised. India's younger population and higher fertility rate have contributed to its growth, while China's aging population and low fertility rate have slowed its growth. The shift in population has social and economic consequences for both countries, with India's growing labor force sparking economic activity and China facing a shortage of working-age adults to support an aging population.