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Elon Musk has sparked fresh debate on India’s demographic future after highlighting the country’s falling fertility rate and warning.

That births have slipped below the replacement level needed to sustain population growth over the long term. Responding to a post on X, the billionaire entrepreneur said India’s birth rate is now below replacement level and added that fertility among the country’s most educated sections had fallen below that mark years ago. His comments came as recent estimates indicated India’s Total Fertility Rate (TFR) has dropped to around 1.9 births per woman, below the replacement benchmark of 2.1.

The discussion gained traction after data shared online pointed to a steady decline in fertility rates across the country. While India surpassed China in 2023 to become the world’s most populous nation, experts say demographic trends suggest population growth is likely to slow considerably in the decades ahead.

Several factors have been linked to the decline in fertility, including rising education levels, urban lifestyles, delayed parenthood, increased career opportunities for women and changing social preferences. Higher living expenses and the growing cost of raising children have also encouraged many families to opt for fewer children.

The trend is especially pronounced in urban areas, where fertility rates are significantly lower than the national average. Demographers note that large cities often experience the sharpest declines due to changing economic and social conditions.

Although India’s population is not expected to shrink immediately, a prolonged period of low fertility could gradually reshape the country’s demographic profile. A smaller proportion of young people and a growing elderly population may create challenges for labour markets, economic growth and welfare systems in the future.

Experts stress that demographic change is a long-term process, but the continued fall in birth rates is increasingly becoming a key policy issue for countries around the world, including India.