India Launches World's Largest Population Census, Aiming to Reshape Welfare and Representation

India has initiated the world's largest national population count, a yearlong process involving over three million officials. This census, delayed by the COVID-19 pandemic, commenced on Wednesday and is set to conclude by March 31 next year. The data collected will be crucial in reshaping welfare programs and political representation across the country.

Census workers will spend about a month collecting information from homes, documenting housing stock and living conditions. Information will be gathered through in-person surveys and online, allowing residents to use a smartphone application.

A second phase of the counting will begin in September, during which more detailed information on people's social and economic characteristics, including religion and caste, will be surveyed. The caste system, an ancient social hierarchy in India, has been a contentious issue, with successive governments resisting a full caste count due to potential social tensions.

The population data collected will underpin the distribution of government welfare programs and inform public policies. It may also lead to a redrawing of India's political map, with potential increases in seats in the lower house of parliament and state legislatures to reflect population growth. A 2023 law reserves one-third of legislative seats for women, so any expansion would raise the number of seats set aside for female representatives.

The last detailed caste information was gathered in 1931 during British colonial rule. Since India's first census in 1951, only Dalits and Adivasis, members of marginalized groups, have been counted. The previous census in 2011 recorded a population of 1.21 billion, which has now grown to over 1.4 billion, making India the world's most populous nation, surpassing China in 2023.