Even though the United Nations projects India's population will keep rising for about four decades, peaking at around 1.7 billion, some policymakers and Hindu groups say the shift away from smaller families should begin now, including through government financial support.
The country's total fertility rate (TFR), the average number of children per woman, declined to 2 in the 2019/21 government assessment period, down from 3.4 in 1992/93, due to increasing use of contraceptives and rising education among females.
A rate of 2.1 is required for the population to replace itself, the government estimates.
The southern state of Andhra Pradesh, ruled by a coalition of a regional party and Modi's party, said over the weekend it would offer a one-time cash incentive of 30,000 rupees ($A435) for a third child and 40,000 rupees for a fourth, revising an earlier proposal for 25,000 rupees for a second child and no direct support for a first-born. It did not say when the plan will be implemented.
Chief Minister Chandrababu Naidu said falling birth rates in many countries were leading to ageing populations and economic strain.
"In the past, we worked extensively on family planning," he said. "Now, given the changed circumstances, we are calling for children to be seen as wealth."
The small northeastern state of Sikkim has also urged families to have more children, offering incentives such as year-long maternity leave, month-long paternity leave and financial support for in-vitro fertilisation.
The United Nations says that in the mid-1980s, China, Japan, South Korea, Thailand and Turkey all deemed their birth rates too high and tried to bring them down, only to change course by 2015 to promote policies to boost births.
The Rashtriya Swayamsevak Sangh (RSS), a powerful Hindu group from which Modi's party emerged, has also called for bigger families, describing it as a priority.
"We say that India is a country of youngsters … but slowly, the TFR is coming down," RSS general secretary Dattatreya Hosabale said. "Demographic imbalances will create tensions."
India's overall unemployment rate for those aged 15 and above was 3.1 per cent in 2025, government data shows, but among those aged 15 to 29 was much higher at 9.9 per cent, including 13.6 per cent in urban areas and 8.3 per cent in rural regions.
