Ex-officials say Census data must be confidential amid concerns over potential NPR, NRC links

The controversy highlights the legal and administrative distinction between the Census, conducted under the Census Act, 1948, and the National Population Register (NPR), generated under the Citizenship Act, 1955. Section 15 of the Census Act, 1948 guarantees confidentiality, explicitly stating that census records are "not open to inspection nor admissible in evidence." This is designed to encourage truthful responses for statistical purposes without fear of punitive action. However, the precedent set in 1951, where Census data was transcribed to create the first National Register of Citizens (NRC) in Assam, raises fears that data collected under the guarantee of confidentiality might be repurposed for citizenship verification. Furthermore, the inclusion of questions demanding details like Aadhaar, voter ID, and driving licenses—data points mirroring the 2019 NPR rehearsal—blurs the lines between a statistical exercise and a demographic surveillance tool. UPSC aspirants must analyze this overlap, questioning whether the collection of such granular data, especially Aadhaar, violates the principles of data minimization and requires amendments to the Aadhaar Act, 2016 or the Census rules themselves.

India follows a de facto method of enumeration, meaning individuals are counted where they are physically present during the census period, rather than at their legal residence. The decision to advance the census in states like Uttar Pradesh and Punjab (ahead of assembly elections) disrupts the traditional March 1 reference date, a time historically chosen to minimize the impact of seasonal migration. This early enumeration poses a significant risk of under-enumeration of migrant workers. If migrants return home to vote, they might miss the census in their destination state and arrive too late to be counted in their home state. This potential undercounting undermines the core utility of the Census, which provides the foundational data for policy formulation, delimitation of constituencies, and allocation of resources (e.g., under the Finance Commission). The article also notes that Census 2027 will be the first in Independent India to enumerate castes beyond Scheduled Castes and Scheduled Tribes, a major shift that will provide crucial data for affirmative action policies but also risks deepening political polarization.

The practical challenges of conducting the decennial Census—a mammoth administrative exercise—are exacerbated by the expanding scope of the questionnaire. Adding 13 new questions, bringing the total to 40, risks inducing respondent fatigue, where citizens become reluctant to provide detailed, accurate information, especially regarding sensitive documents like Aadhaar. This resistance is anticipated to be higher in urban areas. Furthermore, enumerators, who are primarily government school teachers, face an increased burden, potentially compromising data quality. The deferral of the Census in Manipur highlights the necessity of public cooperation; conducting the exercise amidst conflict would yield unreliable data. However, as noted by former officials, postponing the census deprives the state of critical demographic evidence needed to understand and address the very issues (like migration and population changes) that often fuel such conflicts. This scenario underscores the delicate balance the Registrar General and Census Commissioner of India must maintain between comprehensive data collection and the practical realities of fieldwork.