Two-phase census 2027 in UP to begin in May with 5 lakh personnel deployment

Uttar Pradesh has commenced preparations for Census 2027, to be conducted in two phases — Phase 1 (House Listing and Housing Census) and Phase 2 (Population ...

What Happened

Uttar Pradesh has commenced preparations for Census 2027, to be conducted in two phases — Phase 1 (House Listing and Housing Census) and Phase 2 (Population Enumeration including caste data).
Self-enumeration for Phase 1 runs from May 7–21, 2026, followed by house-to-house enumeration by officials from May 22 to June 20, 2026.
Over 5.25 lakh officials and staff have been deployed for the exercise in UP — the largest state-level mobilisation in this census cycle.
For the first time since 1931, caste data beyond Scheduled Castes and Scheduled Tribes will be collected, with Other Backward Class enumeration scheduled during Phase 2 (Population Enumeration, February 2027).
Census 2027 is India's first fully digital census: enumerators will use smartphones and a mobile app; citizens can self-enumerate via an online portal.

Static Topic Bridges

Census Act, 1948 and Constitutional Basis

Census is a Union subject under Entry 69, List I (Union List) of the Seventh Schedule to the Constitution, read with Article 246, which grants Parliament exclusive legislative competence. The Census Act, 1948 provides the statutory framework — it mandates participation, empowers the Registrar General and Census Commissioner of India to conduct the exercise, and prescribes penalties for refusal. State governments act as implementing agencies but cannot modify the schedule or methodology.

Entry 69, Seventh Schedule: "Census" — exclusively a Parliamentary subject.
Article 246: Parliament has exclusive jurisdiction over Union List subjects.
Census Act, 1948: legal basis for decennial enumeration.
Registrar General and Census Commissioner of India: nodal authority under the Act.

Connection to this news: The multi-state rollout, the new caste schedule, and the self-enumeration portal are all authorised under the Census Act, 1948; no state legislature approval is required for the exercise.

Caste Census: Historical and Policy Context

Independent India discontinued caste enumeration in 1951, retaining it only for Scheduled Castes (SC) and Scheduled Tribes (ST) to administer reservations. The last full caste census was conducted under British administration in 1931. The Mandal Commission's landmark 1980 report — which underpinned the 27% OBC reservation in central services — was forced to rely on 1931 data, estimating OBCs at 52% of the population. The Socio-Economic and Caste Census (SECC) 2011 collected caste data but the results were never fully released.

1931: last full caste census in India.
Mandal Commission (1978–80): recommended 27% OBC reservation; relied on 1931 caste data.
SECC 2011: caste data collected but not publicly released.
Cabinet approved inclusion of caste enumeration in Census 2027 in 2025.

Connection to this news: Uttar Pradesh's inclusion of caste data in Phase 2 is part of the nationwide decision to enumerate all castes for the first time since 1931, with direct implications for OBC population estimates, welfare scheme targeting, and reservation jurisprudence.

Digital Census and E-Governance

Census 2027 introduces self-enumeration via an online portal — a governance innovation aimed at improving data accuracy, reducing enumeration burden, and accelerating processing. This aligns with India's broader Digital India framework and the concept of participatory e-governance. The shift to mobile-app-based data collection eliminates paper schedules for the first time.

Self-enumeration window: 15 days before house-to-house operations begin in each state.
Enumerators use smartphones; data submitted directly to the central server.
Self-enumeration eligible for both Phase 1 (houselisting) and Phase 2 (population).

Connection to this news: The 15-day self-enumeration window in UP (May 7–21) precedes the field enumeration phase, setting a precedent for digital citizen participation in statutory data collection.

Key Facts & Data

Census reference date: March 1, 2027 (midnight).
UP Phase 1 self-enumeration: May 7–21, 2026.
UP Phase 1 house-to-house enumeration: May 22 – June 20, 2026.
Personnel deployed in UP: over 5.25 lakh officials and staff.
Last caste census: 1931 (British India).
Previous census: 2011 (Census 2021 was delayed due to COVID-19).
Census 2027 is 16 years after the last census — the longest gap in India's census history.
Digital data collection via mobile app — first fully digital census in India.