The Census Act Gives Enumerators One Job. This Year's Questionnaire Quietly Adds Another.

Two Different Laws Are Being Executed Through One Questionnaire The Census Act, 1948

authorises one thing: the collection of demographic, economic and social data, gathered confidentially and "used exclusively for statistical purposes"

• this is not just a policy norm but Principle 6 of the UN's Fundamental Principles of Official Statistics, which India has adopted. The National Population Register operates under an entirely different statute - the Citizenship Act, 1955, read with the Citizenship (Registration of Citizens and Issue of National Identity Cards) Rules, 2003 - whose purpose is identity registration, a preliminary step toward the National Register of Citizens. These are not the same legal instrument and they are not meant to serve the same function. The 2027 population-enumeration questionnaire's inclusion of Aadhaar numbers, Voter ID numbers, passport numbers and parents' names is where the two statutes' purposes visibly begin to blur.

The Rule As Written, The Rule As Practiced Section

4(2) of the Census Act empowers state governments to appoint enumerators for the Census - and only for the Census. When those same enumerators, using the same house-to-house visit, collect data whose primary utility is identity verification rather than statistical tabulation, they are functionally doing NPR work under Census Act authority, without the NPR's own legal process - public notification, state government consultation, the specific procedural safeguards the Citizenship Rules contemplate - ever being separately invoked.

That gap is precisely why several States refused to let their staff assist with NPR updating during the 2021 Census preparation: they read Section 4(2) as authorising Census work, not NPR work and treated the two as legally distinct even when practically bundled together.

Where the Privacy Question Actually Bites This is not

merely an administrative technicality. The Supreme Court's 2017 K.S. Puttaswamy judgment established that any state collection of personal data must satisfy legality, necessity and proportionality. A Census question has to justify itself by its statistical utility - that is the entire premise of Principle 6's confidentiality guarantee, which only makes sense if the data collected actually serves statistical compilation.

Asking for a bank-account count without any plan beyond "distribution of persons by number of accounts" fails a necessity test rather easily; asking for Aadhaar and Voter ID "if available" fails it even more clearly, since neither number has any independent statistical tabulation use - its only plausible downstream use is administrative identity matching, which is NPR's job, not the Census's.

For the exam, the sharp point is this: when one law's enumerators start collecting data whose real utility belongs to a different law's purpose, the confidentiality guarantee that makes citizens trust the Census in the first place quietly stops applying to information the Census was never actually authorised to convert into an identity record.