India's total fertility rate falls to 1.9, slipping below the replacement level

India has entered a new stage of its population story. The latest Sample Registration System (SRS) data puts the country's total fertility rate (TFR) at 1.9 children per woman. This is below the global average of 2.2 and below the replacement level of 2.1, the figure at which a population stays steady over time without growing or shrinking. For a country that spent decades worrying about rapid population growth, this is a major turning point.

The decline, however, is far from uniform. Rural fertility is still close to the replacement mark, while urban fertility has dropped to 1.5. The sharper gap is between states. Delhi's fertility rate is an ultra-low 1.2, and Kerala, Tamil Nadu and West Bengal stand at 1.3, levels lower than the United States (1.6), Finland (1.4) and Japan (1.3). At the other end, Bihar remains at 2.9, followed by Uttar Pradesh (2.6), Madhya Pradesh (2.4) and Rajasthan (2.3).

The meaning is that India is a low-fertility country as a whole, but not as a single demographic economy. Some states are already ageing quickly, while others still have large groups of young people who will join the workforce over the next two decades. This uneven pattern shapes the idea of the 'demographic dividend', the temporary advantage a country gets when it has a large working-age population compared to dependants, which now exists in some states even as others move past it.

The policy challenge is twofold. India must create productive jobs for young workers in the poorer, younger states, while strengthening income support, healthcare and care systems for the elderly in states where fertility has already fallen sharply. The risk highlighted is that India could grow old before it grows rich, unlike Western Europe and Japan, which aged only after they had industrialised, brought most workers into formal jobs and built wide tax and welfare systems.

Aspirants should remember the key numbers, TFR 1.9 nationally, replacement level 2.1, the rural-urban split (around replacement vs 1.5) and the high-low state spread (Bihar 2.9 to Delhi 1.2). Link the topic to the demographic transition, the demographic dividend, ageing and the SRS as the data source.