India has begun its 16th national Census — and it is unlike any before it. For the first time in the country's census history, the headcount is being conducted through digital means, with citizens able to fill in their own details online through a self-enumeration portal. Census 2027 will also, for the first time since the 1931 Census, record caste data for the general population. With the last census held in 2011, this exercise ends India's longest-ever gap between censuses and feeds directly into looming decisions on delimitation and women's reservation. For CDS and UPSC aspirants, this is a high-yield current-affairs topic that ties together polity, governance, and society.
What was announced
On 30 March 2026, the Registrar General and Census Commissioner of India, Shri Mritunjay Kumar Narayan, addressed a press conference confirming the structure of Census 2027. The exercise officially commenced on 1 April 2026.
Key confirmed specifics:
- Two phases. Phase I — Houselisting and Housing Census (HLO) — runs across the country between April and September 2026, with each State/UT conducting a continuous 30-day field operation at a time of its convenience. Phase II — Population Enumeration (PE) — is scheduled for February 2027 in most of the country.
- Reference date. The reference moment for the count is 00:00 hours of 1st March 2027. For the Union Territory of Ladakh and the snow-bound non-synchronous areas of Jammu & Kashmir, Uttarakhand and Himachal Pradesh, the reference date is 00:00 hours of 1st October 2026.
- Digital data capture. Enumerators collect and submit data directly through a Mobile App on their smartphones. The app and portal are available in 16 languages, including Hindi and English.
- Self-enumeration. A secure, web-based facility (se.census.gov.in) lets respondents enter their details online before the door-to-door survey; per PIB/RGI, this self-enumeration window runs for about 15 days ahead of the enumerator's visit. On submission, a unique Self-Enumeration ID (SE ID) is generated, which the respondent shares with the enumerator during the field visit.
- Caste enumeration. As decided by the Union Cabinet (which approved caste enumeration on 30 April 2025), the recording of castes will be carried out during the second phase (Population Enumeration).
- Scale and cost. The Union Government approved an outlay of ₹11,718.24 crore. Around 30 lakh (about 3 million) enumerators and supervisors will be deployed across 36 States/UTs.
The President of India, Smt. Droupadi Murmu, was the first citizen to self-enumerate, completing her household details on the portal at Rashtrapati Bhavan; Prime Minister Narendra Modi also participated. Per PIB/RGI, the count traditionally begins with the First Citizen, followed by the Vice-President, Prime Minister and Union Home Minister.
How the Indian Census works
The Census of India is the single largest administrative and statistical exercise in the country. A few foundational points every aspirant should know:
- Conducting authority: the Office of the Registrar General and Census Commissioner of India (ORGI / RGI).
- Ministry: it functions under the Ministry of Home Affairs (MHA).
- Legal basis: the Census is conducted under the Census Act, 1948, read with the Census Rules, 1990 (as amended). The Census Act was piloted by Sardar Vallabhbhai Patel, the then Home Minister. Under this Act, individual data is strictly confidential — only aggregated data at various administrative levels is published, and the information collected is so protected that it is not even accessible to the courts of law.
- Frequency: the Census has been conducted decennially (every ten years) since 1881, when the first synchronous census was held; the first census exercise was carried out in 1872.
Crucially, the Census is a Union subject — it appears at Entry 69 of the Union List in the Seventh Schedule, drawn under Article 246 of the Constitution. While States and UTs play a pivotal operational role (deploying and supervising field functionaries), the legal and methodological control rests with the Centre, which ensures uniformity and standardisation across the whole country.
The exercise has always run in two phases: the Houselisting and Housing Census, which records buildings, census houses, households and the condition of housing, amenities and assets; and Population Enumeration, which captures demographic, socio-economic, educational, migration and fertility details of each individual. The Population Enumeration phase usually follows the Houselisting phase after a gap of six to eight months.
India's census milestones
| Milestone | Year | Significance |
|---|---|---|
| First census exercise | 1872 | Non-synchronous, piecemeal count under Viceroy Lord Mayo; recognised as the first attempt |
| First synchronous census | 1881 | Held on a single reference date (17 Feb 1881) under Viceroy Lord Ripon; start of the unbroken decennial series |
| First census of independent India | 1951 | First of the post-Independence decennial censuses |
| Last completed census | 2011 | The 15th Census of India; 2021 census was deferred |
| Census 2027 | 2027 | The 16th census; 8th since Independence; first digital census with self-enumeration and renewed caste data |
Houselisting vs Population Enumeration
| Feature | Phase I — Houselisting & Housing Census (HLO) | Phase II — Population Enumeration (PE) |
|---|---|---|
| What is recorded | Buildings, census houses, households; housing condition, amenities and assets | Demographic, socio-economic, educational, migration and fertility details of each person |
| Timing in 2027 cycle | April–September 2026 (30-day window per State/UT) | February 2027 (most of India) |
| New in 2027 | Captured digitally via mobile app; self-enumeration option | Includes caste enumeration for the general population |
What's new in 2027
Census 2027 marks a generational shift in methodology:
- First digital census. Earlier censuses relied on paper schedules manually filled by enumerators. In 2027, data is captured directly in digital form via a mobile app — reducing large-scale paper handling and speeding up processing.
- Self-enumeration portal. For the first time, households can complete the Census schedule themselves online before the enumerator's visit. This is an additional facility, not a replacement — enumerators still conduct door-to-door visits in every block. President Droupadi Murmu and Prime Minister Narendra Modi were among the first to use the facility when the exercise began on 1 April 2026.
- Caste enumeration. Caste data for the general population has not been collected since the 1931 Census; independent India recorded only Scheduled Castes and Scheduled Tribes (caste data gathered in 1941 was never published). The Union Cabinet's decision of 30 April 2025 to include caste enumeration in Phase II is a landmark policy step.
- Data security. Per PIB/RGI, the digital tools use encryption and multi-factor authentication. A nationwide pre-test of the methodology was conducted in November 2025 across roughly 5,000 blocks.
To ensure consistency, administrative boundaries (districts, tehsils, villages, municipal units) have been frozen from 1 January 2026 to 31 March 2027, with States and UTs requested to intimate any proposed changes before 31 December 2025.
Why it matters
The Census is far more than a headcount — it is the statistical backbone of governance:
- Delimitation. Article 82 ties the redrawing of Lok Sabha and Assembly constituency boundaries to census figures. The 84th Amendment had frozen delimitation until the first census taken after 2026, so fresh data is the trigger for the long-pending exercise.
- Women's reservation. The Nari Shakti Vandan Adhiniyam (106th Amendment, 2023), reserving one-third of seats for women in the Lok Sabha and State Assemblies, is to take effect after a delimitation based on the first census conducted after its commencement (Article 334A) — making Census 2027 the practical enabler.
- Policy and welfare planning. Census data underpins resource allocation, scheme targeting, reservation policy and the devolution of funds.
- The 2011 gap. With the previous census in 2011 (the 2021 census was deferred), this is India's most delayed census, leaving over a decade of planning dependent on outdated figures. Census 2027 will be the 16th census in series and the 8th since Independence.
Key facts for your exam
- Conducting authority: Registrar General & Census Commissioner of India (ORGI/RGI).
- Current RGI: Shri Mritunjay Kumar Narayan.
- Parent ministry: Ministry of Home Affairs (MHA).
- Legal basis: Census Act, 1948 + Census Rules, 1990.
- Constitutional entry: Union List, Entry 69 (Article 246).
- First census (exercise): 1872; first synchronous decennial census: 1881.
- Last census: 2011 (the 15th). Census 2027 = 16th in series, 8th since Independence.
- Reference date: 00:00 hrs, 1 March 2027 (1 October 2026 for Ladakh and specified snow-bound areas).
- Phases: Phase I — Houselisting & Housing Census (Apr–Sep 2026); Phase II — Population Enumeration (Feb 2027), including caste enumeration.
- Firsts: first digital census, first self-enumeration option, first caste count for the general population since 1931.
- Outlay: ₹11,718.24 crore.
Previous-year & expected exam questions
Q1. Consider the following statements regarding the Census of India: (1) The first All-India census was attempted in 1872. (2) Decennial censuses became a regular feature from 1881. (3) The Census is conducted under Entry 42 of the Concurrent List. Which are correct? Answer: Statements 1 and 2 only. The first census attempt was in 1872 and the synchronous decennial series began in 1881. Statement 3 is wrong — Census is at Entry 69 of the Union List, not the Concurrent List.
Q2. The Census in India is conducted under which legislation, and by which authority? Answer: It is conducted under the Census Act, 1948 (read with the Census Rules, 1990) by the Office of the Registrar General and Census Commissioner of India, functioning under the Ministry of Home Affairs.
Q3. With reference to the Nari Shakti Vandan Adhiniyam (106th Amendment Act, 2023), how is it linked to the Census? Answer: The Act reserves one-third of seats for women in the Lok Sabha and State Assemblies. Under Article 334A, the reservation takes effect only after a delimitation carried out on the basis of the first census published after the Act's commencement — making Census 2027 the practical trigger.
Q4. What are the two phases of the Indian Census, and what is new about them in Census 2027? Answer: The two phases are the Houselisting and Housing Census (records buildings/houses/amenities) and Population Enumeration (records individual demographic details). In 2027, data is captured digitally via a mobile app, a self-enumeration option is offered for the first time, and caste enumeration for the general population returns in Phase II for the first time since 1931.
Related topics
- delimitation-commission-india-explained
- womens-reservation-bill-106th-amendment
- union-state-list-seventh-schedule
- caste-census-debate-india
FAQ
Q1. Who conducts the Census of India? The Office of the Registrar General and Census Commissioner of India (ORGI), under the Ministry of Home Affairs, conducts the Census under the Census Act, 1948.
Q2. What makes Census 2027 different from earlier censuses? It is India's first digital census, captured via a mobile app, and the first to offer self-enumeration through an online portal. It is also the first to include caste enumeration for the general population since 1931.
Q3. What is self-enumeration and how does it work? Self-enumeration lets households fill their own details on the portal se.census.gov.in before the enumerator visits. A unique Self-Enumeration ID (SE ID) is generated and shared with the enumerator to confirm the data.
Q4. What is the reference date of Census 2027? 00:00 hours of 1 March 2027 for most of India, and 00:00 hours of 1 October 2026 for Ladakh and snow-bound non-synchronous areas of J&K, Uttarakhand and Himachal Pradesh.