Data hygiene: On the Census and enumerators

📌 Summary:

• Context: During Census 2027's first phase — the Houselisting and Housing Operation (HLO) — enumerators in Rajasthan and Uttar Pradesh were reportedly advised to "revisit households and correct discrepancies" and not to select options that "show the government in a poor light"
• Core argument: Re-verification is a legitimate part of any survey, but it must reflect reality accurately — not manage perceptions; data sanitisation under the guise of re-verification undermines Census integrity
• Causal chain / mechanism: (1) In Rajasthan, a circular from the Director of Census Operations asked officials to "correct" field-data discrepancies — but in some cases enumerators were told to record data on assumptions (e.g., changing "open defecation" to "access to latrine" if a toilet exists nearby) (2) In UP, the message was reportedly not to present facts as they are — directly threatening data reliability (3) Manipulated Census data feeds into flawed policy design and misallocated welfare funding, since schemes are built on this data
• Wider implication: The episode questions the efficacy of flagship programmes like the open-defecation campaign; ODF/ODF Plus classifications may not reflect ground reality
• Key data: Census exercise budget is about ₹11,718 crore for the country
• Solutions proposed: (1) Policymakers must ensure Census data are accurate and credible, and sensitise people to give correct information (2) Authorities must resolve enumerators' genuine difficulties (3) The Union government should be liberal in enhancing enumerator allowances for timely, efficient work (4) A clear message that data sanitisation must not occur under the guise of re-verification

🎯 UPSC Relevance: GS2 (Governance — transparency, accountability) and GS1 (Society — Census/demography) — data integrity in public administration, evidence-based policymaking, and the credibility of administrative classifications (ODF).

🔑 Key Term: Houselisting and Housing Operation (HLO) — the first phase of the Census that records housing conditions and household amenities, preceding the Population Enumeration phase.