As Census begins, enumerators set out to map homes and households

The Houselisting and Housing Census (HLO) phase of Census 2027 — the 16th Indian Census — commenced on July 1, 2026 in Kerala and Nagaland, with field operat...

What Happened

The Houselisting and Housing Census (HLO) phase of Census 2027 — the 16th Indian Census — commenced on July 1, 2026 in Kerala and Nagaland, with field operations running until July 30, 2026.
Approximately 3.3 million enumerators are conducting staggered operations across all 36 States and Union Territories between April and September 2026; states such as Maharashtra, Meghalaya, Rajasthan, Jharkhand, and the MCD area of Delhi had already completed their HLO phase by mid-June.
India's first-ever optional self-enumeration facility allows households to submit housing and amenity data online (se.census.gov.in) in 16 languages before an enumerator's visit; the Population Enumeration phase is scheduled for February 2027.

Static Topic Bridges

Census Act, 1948 — Legal Framework

The Census of India is governed by the Census Act, 1948, administered by the Office of the Registrar General and Census Commissioner of India (ORGI) under the Ministry of Home Affairs. The Act makes participation legally compulsory for all residents and imposes strict confidentiality on individual-level data — census records cannot be used as evidence in court and are not accessible to other government departments. Importantly, the Act does not specify the frequency of the census; by convention India has conducted it decennially since 1881 (the first synchronous census). The Census Rules, 1990 supplement the Act with operational details.

Census of India Act enacted in 1948; Census Rules framed in 1990.
Data collected under the Act is strictly confidential and cannot be used for taxation, law enforcement, or immigration purposes.
Two phases: (1) Houselisting and Housing Census — maps buildings, household amenities, and assets; (2) Population Enumeration — counts every individual with March 1 as the reference date.
The 2021 census was indefinitely postponed due to COVID-19; the rescheduled census is now called Census 2027 (covering reference year 2026–27), making it the first census delayed since 1871.

Connection to this news: The houselisting exercise now underway in Kerala and Nagaland is Phase I of Census 2027 — the data it collects on housing conditions, amenities, and assets forms the foundational frame for the Population Enumeration in February 2027.

Articles 82 and 170 — Delimitation After Census

Article 82 of the Constitution mandates Parliament to enact a Delimitation Act after every Census, triggering the readjustment of Lok Sabha constituencies to reflect updated population distribution. Article 170 similarly requires State Legislative Assembly constituencies to be readjusted after each Census. These provisions ensure that each vote carries approximately equal weight as populations shift. A Delimitation Commission — a statutory body — is constituted under the Delimitation Act to carry out this exercise. The last delimitation based on census data was done using the 1971 Census figures; the 84th Constitutional Amendment (2001) froze this until 2026, and the 87th Amendment extended it further. Constituency counts in the Lok Sabha have been frozen at 543 since 1977.

Article 82: Parliament shall readjust Lok Sabha seats after every Census using a Delimitation Act.
Article 170: State Assembly seats similarly readjusted after each Census.
The 84th Constitutional Amendment Act (2001) froze delimitation based on 1971 Census until 2026; the freeze is now set to lift once Census 2027 figures are available.
Southern states with lower population growth rates have expressed concern that post-2027 delimitation may reduce their proportional representation in the Lok Sabha.
Delimitation Commission is constituted under a Delimitation Act; its orders have the force of law and cannot be questioned in any court.

Connection to this news: Census 2027 is the first census since the delimitation freeze ends, meaning the population data collected will directly determine constituency boundaries and seat allocation for the Lok Sabha and State Assemblies — one of the most politically consequential uses of census data.

National Population Register (NPR) and Citizenship Act

The National Population Register (NPR) is a register of usual residents of India, maintained under the Citizenship Act, 1955 and the Citizenship Rules, 2003. Unlike the Census (under the Census Act, 1948), the NPR is linked to the citizenship framework — it records "usual residents" and collects biometric data. The NPR is typically updated simultaneously with the Houselisting phase of the Census. The NPR update planned to coincide with the 2021 Census was indefinitely suspended in 2020 amid public controversy around its linkage to the National Register of Citizens (NRC).

NPR is governed by the Citizenship Act, 1955 and Citizenship Rules, 2003 — distinct legal basis from the Census Act, 1948.
NPR records: name, date and place of birth, sex, father's name, mother's name, spouse's name, nationality, present address of usual residence, duration of residence at current address, permanent residential address, occupation, educational qualification.
NPR is administered by the Registrar General of India — the same office that conducts the Census.
The NRC-NPR controversy (2019–20) led to suspension of NPR update; its status in relation to Census 2027 remains a policy question.

Connection to this news: With the houselisting phase now underway, the government's approach to an NPR update — whether it will be integrated with Census 2027 field operations or kept separate — is a key governance and civil liberties question.

Historic Caste Census Component

On April 30, 2025, the Union Cabinet approved the inclusion of caste enumeration in Census 2027 — the first time since 1931 that individual caste (jati) data will be collected for the general population (not just Scheduled Castes and Scheduled Tribes). The 1931 Census recorded caste data; post-Independence, only SC/ST populations have been enumerated by category. The Mandal Commission (1980) relied on the 1931 data to estimate the OBC population at approximately 52%. A fresh caste count will provide constitutional backing for OBC reservation policies under Articles 15(4) and 16(4) and will settle longstanding debates about the actual share of OBCs in the population.

Last caste-wise census for general population: 1931.
The Socio-Economic and Caste Census (SECC) 2011 collected caste data but its data was not published in a usable format and was not considered a formal caste census.
Articles 15(4) and 16(4) allow the State to make special provisions for socially and educationally backward classes — a fresh caste count strengthens the evidence base for such provisions.
Individual jati (specific caste community) — not just SC/ST broad categories — will be recorded for the first time in independent India.

Connection to this news: The enumerators beginning their rounds in July 2026 are conducting the phase that precedes population enumeration — caste data will be collected in the Population Enumeration phase in February 2027.

Key Facts & Data

Census 2027 is India's 16th Census and the first digital census, with enumerators encouraged to use smartphones; a paper option remains available.
The houselisting phase runs in staggered waves across all 36 States and UTs: April–September 2026.
Population Enumeration phase: February 2027; reference moment: March 1, 2027.
Approximately 3.3 million enumerators will participate in the exercise.
Self-enumeration portal (se.census.gov.in) operates in 16 languages; households receive a unique Self-Enumeration ID verified by field staff.
Last census conducted: 2011 (Census Commissioner: C. Chandramauli); the 2021 cycle was the first to be postponed.
Census data feeds delimitation (Articles 82/170), welfare scheme targeting, OBC reservation evidence base, and planning for infrastructure and public services.
The Registrar General and Census Commissioner of India (ORGI) sits under the Ministry of Home Affairs.