Census 2027: Why Accurate Enumeration Matters for Reliable Data

India's next Census, Census 2027, is a massive national exercise to count the population and gather details about households across the country. Its first phase, the Houselisting and Housing Census, is already under way in several States. In this phase, enumerators visit homes to record information about housing conditions and the basic facilities families have, such as drinking water, electricity, and sanitation. The total cost of the Census for the whole country is estimated at about Rs 11,718 crore, which shows how large and important the exercise is.

The reliability of Census data depends entirely on enumerators recording what they actually find on the ground. Recently, in some States including Rajasthan and Uttar Pradesh, questions have been raised about instructions asking enumerators to revisit households and correct what were described as data discrepancies. In one example, where households did not have toilets, enumerators were reportedly told to check whether a toilet was available nearby and then change the entry from open defecation to having access to a latrine. Re-verification is a normal and legitimate part of any survey, but it should be done only to reflect the true situation, not to make the data look better than reality.

Why does this matter so much? Census figures are the foundation of public policy in India. Governments use them to plan welfare schemes, allocate funds, design programmes, and decide where new facilities are needed. For example, classifications such as Open Defecation Free, ODF Plus, and ODF Plus Model are used for administrative and funding purposes. If field data are adjusted to fit a desired picture rather than the real one, schemes may be misdirected and the people who need help most could be left out. Accurate data therefore directly affect targeted and inclusive policymaking.

Ensuring data integrity is the responsibility of policymakers and officials. They must support enumerators, resolve the genuine difficulties they face in the field, and make sure people understand the importance of giving correct information. Suggestions in this regard include offering better allowances so that enumerators can do the work efficiently and on time, and making reliable data publicly available once the Census is complete.

For aspirants, the Census connects to several syllabus areas: the machinery of data collection, the role of the Registrar General and Census Commissioner, ethics in public administration, and the link between credible statistics and effective welfare delivery. It is a clear example of how the quality of basic data shapes the quality of governance.