What Happened
- Phase 1 of Census 2027 — the House Listing and Housing Census (HLO) — commenced on April 1, 2026, making it India's first fully digital census.
- Citizens can self-enumerate through a dedicated portal (se.census.gov.in) in 16 languages during a 15-day window before field enumerators visit their area.
- The government has notified 33 questions covering building details (wall, floor, roof materials, house condition), household composition, and access to amenities (drinking water source, lighting, sanitation, bathing, kitchen facilities).
- About 32 lakh (3.2 million) enumerators and supervisors will use mobile devices and geo-tagging tools instead of paper forms, operating across all 36 states and Union Territories.
- Phase 1 (house listing) runs April–September 2026, with each state getting a 30-day field window; Phase 2 (population enumeration) is scheduled for February 2027.
- For the first time since 1931, the census will include caste enumeration — castes will be counted in Phase 2, following the Cabinet Committee on Political Affairs decision of April 30, 2025.
Static Topic Bridges
Census of India — Constitutional Basis and Historical Context
Population enumeration in India is a Union subject under Entry 69 of the Seventh Schedule (List I) read with Article 246 of the Constitution. The Census Act, 1948 — which predates the Constitution — remains the operative legal framework. All post-independence censuses from 1951 onwards have been conducted under this Act, administered by the Registrar General and Census Commissioner of India under the Ministry of Home Affairs.
India has conducted a decennial census since 1872 under British rule. The 2027 census is the 16th census of India (and the first after a five-year delay from the originally scheduled 2021 exercise, postponed due to COVID-19). The 2011 census counted 1.21 billion people; the 2027 count is expected to cross 1.4 billion.
- Legal basis: Census Act, 1948; Article 246 (Entry 69, Union List)
- Conducted every 10 years; administered by Registrar General and Census Commissioner of India, under Ministry of Home Affairs
- 2011 census (15th): population 1.21 billion, literacy 74.04%, decadal growth 17.7%
- Previous caste census: 1931 (British India); caste data not captured in any post-independence census until now
- Census data drives delimitation of parliamentary constituencies, allocation of centrally sponsored scheme funds, and calculation of devolution under the Finance Commission
Connection to this news: The April 1, 2026 launch marks the formal start of enumeration operations after the longest gap in India's census history; the digital shift and inclusion of caste data make this the most consequential census since 1947.
Digital Governance and e-Governance Initiatives
The shift from paper forms to a mobile-app-based data collection system with centralised cloud storage represents a significant leap in the government's e-governance framework. This aligns with India's broader Digital India initiative and the use of technology for last-mile service delivery and administrative reform.
- Self-enumeration portal: se.census.gov.in (available in 16 languages)
- Field enumerators use custom mobile applications with geo-tagging functionality
- Centralised web platform enables real-time data validation and quality control
- Digital approach reduces data entry errors and the time between enumeration and publication of results
- Approximately 45,000 field trainers have been trained to cascade training to 31 lakh enumerators and supervisors in about 80,000 batches
Connection to this news: The digital-first design of Census 2027 is the most visible example of e-governance applied to a constitutional obligation at national scale, making it directly relevant to GS Paper 2 questions on governance reform and technology in public administration.
Caste Enumeration and Its Policy Implications
The inclusion of caste data in the 2027 census is politically and administratively significant. India last collected comprehensive caste data in 1931 under British rule. The Socio-Economic Caste Census (SECC) conducted in 2011 collected some data but was never published in full due to methodological concerns. The 2021 census (postponed) had initially excluded caste, but following political pressure and the Bihar caste survey (2023), the Cabinet Committee on Political Affairs reversed course in April 2025.
- Caste enumeration will occur in Phase 2 (February 2027), not Phase 1
- Data expected to inform OBC (Other Backward Class) sub-categorisation and reservation policy
- Bihar's 2023 caste survey found OBCs and EBCs at ~63% of the state population — similar surveys in Telangana and Karnataka created political pressure for a national count
- Caste data will also feed into delimitation of constituencies, which must follow the 2027 census (frozen since 1976 based on 1971 census for seats; 2001 census for internal state boundaries)
- Supreme Court in K. Krishna Murthy v. Union of India (2010) held that caste can be a basis for reservation if supported by quantifiable data — a census would provide such data
Connection to this news: The caste enumeration dimension of Census 2027 links directly to debates on reservation policy, OBC sub-classification (after the SC judgment in Panjab v. Davinder Singh, 2024), and upcoming delimitation — all high-priority Mains GS 2 topics.
Key Facts & Data
- Phase 1 duration: April 1 to September 30, 2026 (36 states/UTs, rolling 30-day windows)
- Phase 2: February 2027 (population enumeration, including caste count)
- Workforce: ~32 lakh enumerators and supervisors using mobile devices
- Questions in Phase 1: 33 (house listing and housing conditions)
- Self-enumeration portal: se.census.gov.in, 16 languages, 15-day window per region
- Last caste census: 1931; last full census: 2011 (population 1.21 billion)
- Legal authority: Census Act 1948; Union List Entry 69, Article 246
- Caste data decision: Cabinet Committee on Political Affairs, April 30, 2025
- Delay: Originally scheduled 2021; postponed due to COVID-19 — a five-year gap, the longest in India's modern census history