Anantam IASCurrent Affairs · 9 September 2026

Census 2027

GS I · GS II · Indian Polity

Why in news?

The expansion of the Census questionnaire (incorporating 40 questions) and its departure from traditional demographic data collection toward collecting individual identity markers has raised concerns among experts.

UPSC Relevance

Prelims

Mains, GS1, Population

GS 2, Significant Provisions and Basic Structure – Citizenship

Statutory, Regulatory and various Quasi-judicial Bodies.

Departures in Census 2027 Questionnaire

Collection of Granular Identifiers: Introduction of questions regarding parents’ and spouses’ names, permanent address, place of COVID-19 vaccination, total bank accounts, mobile number, passport number, driving license availability, and official identification markers (e.g., voter ID).
Shift from Statistical Aggregates to Individual Profiling: Historically, Census data focused purely on anonymous, aggregate demographic and socio-economic data. The new format incorporates traceable personal parameters.

Governance, Privacy, and Constitutional Concerns

Violation of Statistical Confidentiality:
- UN Fundamental Principles of Official Statistics (Principle 6): Individual data collected for statistical compilation must remain strictly confidential and used exclusively for statistical purposes.
- Data Siloing Risk: Utilizing statistical census machinery to extract individual details for potential cross-departmental sharing undermines the fundamental trust between citizens and statistical agencies.
Convergence with the National Population Register (NPR):
- Parameters like parental details, permanent address, and declared nationality closely align with data requirements for updating the NPR (the basis for the National Register of Citizens – NRC).
- Legal & Federal Friction: While the Census is governed by the Census Act, 1948, the NPR falls under the Citizenship Act, 1955. Utilizing state-level enumerators appointed under Section 4(2) of the Census Act for NPR-aligned data collection without clear, transparent statutory mandates risks center-state administrative friction.
Right to Privacy Considerations: Under the framework established in K.S. Puttaswamy v. Union of India (2017), state data collection must satisfy the tests of legality, necessity, and proportionality. Collecting traceable personal identity numbers under a statistical exercise raises questions regarding proportionality and purpose limitation.

Comparative Global Practices

United States: Census data is strictly protected under Title 13 of the US Code, preventing non-statistical use. Historic individual census records are unsealed only after 72 years for genealogical research.
India’s Traditional Model: Names served solely as temporary field placeholders to prevent double-counting during enumeration and were never computerized or stored in public/master databases.

Way Forward

Adherence to Purpose Limitation: Re-anchor the Census exclusively to socio-economic data collection, maintaining a strict firewall between statistical data gathering and administrative population registers (NPR/NRC).
Streamlining the Questionnaire: Reduce redundant queries to mitigate enumerator workload and respondent fatigue, ensuring higher data accuracy.
Transparent Legal Frameworks: If the state requires population registers, the process should be undertaken through separate, transparent statutory mechanisms that comply with data protection norms rather than leveraging statistical surveys.

Differentiating Census, National Population Register (NPR), and National Register of Citizens (NRC)

Feature	Census	National Population Register (NPR)	National Register of Citizens (NRC)
Primary Purpose	To collect detailed, aggregated statistical data on the entire population (demographics, social, economic, housing). This data is used for government planning, policy formulation, and research.	To create a comprehensive identity database of all usual residents of the country. This register is meant for better governance, delivery of government schemes, and security.	To identify and document all legal citizens of India and distinguish them from illegal immigrants. The primary goal is to verify citizenship status.
Legal Backing	The Census Act, 1948. This act makes it mandatory for every person to truthfully provide information and guarantees confidentiality.	The Citizenship Act, 1955 and the Citizenship (Registration of Citizens and Issue of National Identity Cards) Rules, 2003.	The Citizenship Act, 1955 and the Citizenship (Registration of Citizens and Issue of National Identity Cards) Rules, 2003.
People Included	All individuals residing within the geographical boundaries of India at the time of enumeration. This includes both citizens and non-citizens.	All “usual residents” of the country, defined as a person who has resided in an area for the past six months or more, or who intends to reside there for the next six months or more.	Exclusively Indian citizens.
Criteria for Inclusion	Based on physical presence at the time of enumeration. Information is primarily based on self-declaration, without a requirement for documentary proof.	Any person who has been living in an area or locality for six months or more or intends to live in an area/locality for the next six months at the time of a survey is considered a resident. While based on self-declaration, it is the initial step for creating a comprehensive identity database. It collects demographic and, potentially, biometric data.	Requires documentary proof of citizenship. In the case of the Assam NRC, this involved proving that a person or their ancestors were in India before a specific cut-off date (e.g., March 24, 1971). A nationwide NRC would also require similar documentary evidence.
Who Conducts	The Office of the Registrar General and Census Commissioner, under the Ministry of Home Affairs. Field operations are a joint effort with state governments.	The Office of the Registrar General and Census Commissioner, under the Ministry of Home Affairs. It is often conducted simultaneously with the houselisting phase of the Census.	The Office of the Registrar General and Census Commissioner, under the Ministry of Home Affairs. The Assam NRC was a Supreme Court-monitored exercise.
Confidentiality	Data collected about an individual is strictly confidential and cannot be shared with any government department or individual. The Census Act guarantees this confidentiality.	The data collected can be shared with other government departments for the implementation of welfare schemes and for security purposes. The information is not considered confidential in the same way as census data.	The register is intended to be a public document to verify citizenship status and is not confidential.
Frequency	Decennial (once every 10 years). The last complete census was conducted in 2011. The 2021 Census has been postponed.	Was first prepared in 2010 and updated in 2015. It is designed to be a dynamic, continuously updated register.	The only nationwide NRC was prepared in 1951. An updated NRC has been conducted only in Assam. A nationwide NRC has been proposed but not yet implemented.
Last Conducted	2011 (Complete Census)	Updated in 2015	The final list for the Assam NRC was published in 2019.
Relationship to Each Other	A completely separate and independent exercise from both the NPR and the NRC.	The NPR can be seen as the foundational step for the NRC. The Citizenship Rules, 2003, explicitly state that the NPR data can be used to prepare the NRC after a verification process to determine citizenship.	The NRC is the final outcome of the citizenship verification process, potentially using the NPR as the base list of residents. It is the end goal for identifying legal citizens.

The Indian Census

Historical Context and Significance: It has a history spanning over 130 years, with the first census conducted non-synchronously in 1872 and then the decennial Census since 1881. This decennial exercise provides valuable insights into the demographic, economic, and social characteristics of India’s people.
From 1881 to 2011, the census exercise was conducted uninterruptedly every ten years except 2021.
Administrative Authority: The responsibility for conducting the census lies with the Office of the Registrar General and Census Commissioner of India (RGI), which operates under the Ministry of Home Affairs.
Evolution of the Census Organization:
- Prior to 1951, the census organization was set up on an ad-hoc basis for each enumeration.
- The Census Act of 1948 was enacted to provide a legal framework for conducting the census and to define the duties and responsibilities of census officers.
- In May 1949, the government established the Office of the RGI and ex-officio Census Commissioner within the Ministry of Home Affairs to systematically collect data on population and vital statistics.
- Later, this office was also tasked with implementing the Birth and Death Registration Act, 1969.
Organizational Structure: The census organization in India consists of its headquarters in New Delhi and a network of 34 Directorates of Census Operations that function in different states and union territories.

Census 2027

The main census, set to be completed in 2027, will be the first since 2011. It will be conducted in two phases:
- Houselisting and Housing Schedule (HLO)
- Population Enumeration
- The exercise is scheduled to run from April 1, 2026, to February 28, 2027.

Key Innovations: The upcoming census introduces several new features:

It will be the first digital census.
It will be the first time since independence that caste will be enumerated.
A mobile app will be used for data collection for the first time.
The pre-test will also try out self-enumeration, digital mapping tools, and a web-based portal for real-time monitoring.

National Population Register (NPR):

The government has stated that no decision has been made to update the NPR during the 2027 Census exercise.
The NPR, which contains details of 119 crore residents, was first created in 2010 and updated in 2015-16.
According to the Citizenship Rules, 2003, the NPR is the first step toward creating a National Register of Citizens (NRC).

Practice MCQ

Consider the following statements regarding the Census, National Population Register (NPR), and National Register of Citizens (NRC):

While the Census is governed by the Census Act, 1948, both the NPR and NRC are prepared under the provisions of the Citizenship Act, 1955.
Individual-level data collected under the Census Act is confidential and inadmissible as evidence in court, unlike NPR data.
The NPR is a mandatory register containing demographic and biometric details exclusively of Indian citizens residing in the country.

Which of the statements given above are correct?

(a) 1 and 2 only

(b) 2 and 3 only

(d) 1, 2 and 3

Correct Answer: (a) 1 and 2 only

Practice Question

The conduct of the delayed Census 2027 goes beyond a routine demographic counting exercise, as it carries profound political and socio-economic ramifications. In light of this, analyze the major debates surrounding Census 2027 and its implications for Indian federalism and policy design. (10 Marks, 150 Words)