Ex-officials say Census data must be confidential amid concerns over potential NPR, NRC links
Former census and administrative officials have called for strict confidentiality safeguards around upcoming Census data, citing concerns over its potential use in preparing a National Population Register (NPR) or National Register of Citizens (NRC).
Historical records show that in 1951, an NRC was prepared nationwide by copying particulars directly from that year's Census enumeration schedules, under a Ministry of Home Affairs directive.
The countrywide 1951 NRC exercise was never published in full; it was published only for undivided Assam, which at that time also included the present-day states of Manipur and Tripura.
The discussion highlights the legal distinction between Census data (protected by statutory confidentiality) and NPR/NRC data (which can be used for identification and citizenship-verification purposes).
Census Act, 1948 — Section 15 confidentiality
The Census Act, 1948 (Act No. 37 of 1948) is the central legislation governing the decennial Census of India. Section 15 guarantees that individual-level census records cannot be inspected, disclosed, or used as evidence in any legal proceeding, court, or before any tribunal — the statutory basis for the "your data is safe" assurance given to respondents.
The core concern raised by former officials is precisely about preserving this Section 15 firewall — ensuring Census data collected under a statutory confidentiality guarantee is not repurposed for NPR/NRC identification exercises, which operate under a different legal regime.
The 1951 National Register of Citizens — origin and precedent
The NRC has been compiled nationwide only once, in 1951, when the Ministry of Home Affairs directed that a register be prepared by recording particulars of every person enumerated in that year's Census, organised village/house-wise. It was primarily intended to support the creation of electoral rolls for India's first Census after Independence and first general elections under universal adult franchise.
Key Details
- The 1951 NRC drew its data directly from the 1951 Census schedules rather than through a separate data-collection exercise — establishing the historical precedent for a Census-to-NRC data pipeline.
- It was compiled across the country, but published only in Assam (which at that time administratively included present-day Manipur and Tripura), primarily to address concerns about migration from erstwhile East Pakistan.
- The Assam NRC was not updated again until the 2013-2019 Supreme Court-monitored updation exercise, which culminated in the 2019 published list.
- The updated Assam NRC used the 1971 electoral rolls and the 1951 NRC as key "legacy documents" to verify citizenship, with March 24, 1971 (the Assam Accord, 1985 cut-off date) as the eligibility threshold.
Citing the 1951 precedent, former officials argue that once Census-derived data is used to build a citizen identification register, it can be replicated for other regions — the historical basis for demanding a strict statutory separation between Census enumeration and any future NPR/NRC exercise.
National Population Register (NPR) and its link to NRC
The NPR is a register of usual residents of India (not necessarily citizens), maintained under the Citizenship Act, 1955 and the Citizenship (Registration of Citizens and Issue of National Identity Cards) Rules, 2003, notified by the Ministry of Home Affairs. Rule 3 of the 2003 Rules empowers the Registrar General of India (who is also the Census Commissioner) to prepare the Population Register.
Key Details
- The 2003 Rules explicitly provide that the NRC is to be prepared through "due verification" of the particulars collected in the NPR — meaning the NPR is designed as the foundational database from which a future NRC could be built, distinct from the Census.
- Unlike Census data (protected absolutely under Section 15 of the Census Act), NPR data is not covered by the same confidentiality shield, since its statutory purpose includes citizenship-related verification.
- The Registrar General of India holds a dual role — also serving as Census Commissioner — which is the institutional link that raises the confidentiality question: the same office collects data for both processes, even though the two are governed by different statutes with different confidentiality standards.
- NPR data collection has historically been conducted alongside the Census houselisting phase, though the two are legally and procedurally distinct exercises.
The concern raised is institutional: because the same officer (Registrar General/Census Commissioner) and often the same household-visit exercise touch both Census and NPR data, safeguards are needed to prevent Census-specific confidentiality (Section 15) from being diluted when data flows into the NPR-NRC pipeline.
Right to Privacy as a constitutional backdrop
The Supreme Court's nine-judge bench ruling in K.S. Puttaswamy v. Union of India (2017) held that the right to privacy is a fundamental right, intrinsic to the right to life and personal liberty under Article 21 of the Constitution, overruling earlier contrary rulings in M.P. Sharma (1954) and Kharak Singh (1962).
Key Details
- The judgment established that any state action collecting or using personal data must satisfy a three-fold test: legality (backed by law), legitimate state aim, and proportionality.
- It provided the constitutional foundation that later led to the enactment of the Digital Personal Data Protection Act, 2023.
- Applied to Census/NPR data, the proportionality test requires that data collected for one statutory purpose (Census enumeration) not be repurposed for an unrelated purpose (citizenship verification) without independent legal backing and adequate safeguards.
The former officials' confidentiality concerns can be read as invoking this constitutional proportionality principle — cautioning against Census data (or the Census-collection apparatus) being used, without express safeguards, for NPR/NRC purposes it was not statutorily designed for.
- Census Act: Act No. 37 of 1948; confidentiality guarantee under Section 15 (overrides RTI Act and Evidence Act for individual records).
- 1951 NRC: first and only nationwide NRC exercise, compiled directly from 1951 Census schedules; published only for undivided Assam (which then included Manipur and Tripura).
- NPR legal basis: Citizenship Act, 1955 + Citizenship (Registration of Citizens and Issue of National Identity Cards) Rules, 2003 (Rule 3).
- Assam NRC update: Supreme Court-monitored, 2013–2019; final list published 2019; used March 24, 1971 (Assam Accord, 1985) as citizenship cut-off.
- Right to Privacy: recognised as a Fundamental Right under Article 21 in K.S. Puttaswamy v. Union of India (2017), a nine-judge bench decision.