GS Paper 1 · 15 August 2026
Census 2027: Centre Clears 40 Questions, Caste and Aadhaar Details on List
The Union government has approved the questionnaire for Census 2027, comprising 40 questions including enumeration of caste and collection of Aadhaar details. This is significant because the decennial census has been delayed beyond 2021, and inclusion of caste responds to long-standing demands for evidence-based social justice policies. Aadhaar linkage raises data privacy and federalism concerns. Implications include better targeting of welfare schemes but also debates on individual privacy and the constitutional basis for caste enumeration.
Why UPSC cares
Primary GS-1 (Population and associated issues, Social Issues – Caste). Secondary GS-2 (Government policies and interventions, welfare schemes). Connects to Indian Polity – Census under Article 246, NCERT Geography – Population, and Social Problems in India by Ram Ahuja.
How to study this story
The examiner will not ask whether the census is delayed; that is now common knowledge. The sharper question is why the questionnaire itself has become a political document. The inclusion of caste and Aadhaar in the same instrument is not a coincidence. It bundles two separate controversies into one administrative exercise. Caste enumeration has been demanded for decades by parties that see it as the empirical basis for revising reservation policy. Aadhaar collection, by contrast, is a governance tool whose constitutional status has been contested in the courts. Placing both in the census means the exercise will be read simultaneously as a social justice measure and as a surveillance mechanism. For Mains, the candidate who treats this as a single story will produce a flat answer. The better answer separates the two threads and then shows how they interact. Caste data can strengthen targeted welfare, but only if the categories are designed well and the data is not misused. Aadhaar linkage can reduce duplication, but it raises questions about consent, data security, and the relationship between the individual and the state. The federalism angle is also underappreciated. The census is a Union subject under Article 246, but the data is collected and used by states. A state that wants caste data for its own policies may welcome the move; a state that fears centralised profiling may resist it. The examiner rewards answers that show this tension rather than simply listing pros and cons. For Prelims, the safest preparation is to know the constitutional basis of the census, the legal status of Aadhaar, and the difference between a census and a survey. Do not memorise the forty questions; memorise the principles that make some questions controversial.
The larger paper context
GS Paper 1 today is about memory and geography. Partition Horrors Remembrance Day is a recurring factual question, but the examiner's real interest is in the long-term social consequences—refugee rehabilitation, communal memory, nation-building. The El Niño forecast is a classic geography-to-economy bridge: know the mechanism, but also be ready to link it to agriculture, inflation, and disaster management. The trap is treating these as static facts; the paper rewards connecting them to contemporary policy.
Probable question
Census 2027's inclusion of caste and Aadhaar details is a policy choice with deep constitutional and privacy implications. How should the government balance data needs with individual rights?
Quick practice check
Q1
Consider the following statements regarding Census 2027 as per the approved questionnaire: 1. It includes enumeration of caste. 2. It includes collection of Aadhaar details. 3. It is conducted under a State subject as per Article 246. Which of the statements given above are correct?
- 1 and 2 only
- 2 and 3 only
- 1 and 3 only
- 1, 2 and 3
Show answer
Correct answer: 1 and 2 only
The approved questionnaire for Census 2027 includes enumeration of caste and collection of Aadhaar details, so statements 1 and 2 are correct. Statement 3 is incorrect because the census is a Union subject under Article 246, not a State subject.
Q2
With reference to the decennial census in India, which of the following has been a consequence of the delay beyond 2021?
- The constitutional mandate for conducting the census every ten years has been removed.
- Welfare schemes have been automatically delinked from census data.
- The approved questionnaire for Census 2027 includes caste enumeration and Aadhaar collection.
- The census has been transferred from the Union List to the Concurrent List.
Show answer
Correct answer: The approved questionnaire for Census 2027 includes caste enumeration and Aadhaar collection.
The delay beyond 2021 has led to the approval of a new questionnaire for Census 2027 that includes caste enumeration and Aadhaar collection. The other options are factually incorrect: the constitutional mandate remains, welfare schemes are not automatically delinked, and the census remains a Union subject.
Related previous-year questions
- GS-1 2019: Discuss the main objectives of Population Education and point out the measures to achieve them in India.
- GS-2 2018: Whether National Commission for Scheduled Castes has been able to effectively function as a constitutional body in protecting the interests of SCs.