India’s Demographic Data Architecture

Demography studies population size, composition and change through fertility, mortality, migration and spatial distribution.

Census of India: Conducted by the Office of the Registrar General & Census Commissioner, India (ORGI) under the Ministry of Home Affairs, under the Census Act, 1948 and Census Rules, 1990.

Civil Registration System (CRS): Coordinated by ORGI under MHA; continuously records births, deaths and stillbirths under the Registration of Births and Deaths Act, 1969.

Sample Registration System (SRS): Implemented by ORGI to provide estimates of major fertility and mortality indicators such as birth rate, death rate, infant mortality rate and maternal mortality.

National Family Health Survey (NFHS): Conducted under the Ministry of Health and Family Welfare (MoHFW), with IIPS, Mumbai providing coordination and technical guidance.

NFHS provides important data on fertility, mortality, maternal and child health, nutrition and family welfare.

Census 2027: Key UPSC Facts

Census 2027 will be India’s 16th Census since 1872 and 8th after Independence.

It will be India’s first fully digital Census, using mobile-app-based enumeration and providing a self-enumeration option.

It will be conducted in two phases:

Houselisting and Housing Census: Covers housing conditions, amenities and household assets.
Population Enumeration: Collects demographic, social, economic, migration, fertility and related individual information.

Caste enumeration will be included in Census 2027.

The reference date is 1 March 2027 for most of India and 1 October 2026 for Ladakh and specified snow-bound areas.

Individual Census information is confidential, while only aggregated statistical data is published.

High-Level Committee on Demographic Changes

The Committee is chaired by retired Supreme Court judge Justice Prakash Prabhakar Naolekar.

Its members include the Census Commissioner, Durga Shankar Mishra, Balaji Srivastava and economist Dr Shamika Ravi.

It will examine demographic changes linked to illegal immigration, fertility variation, cross-border movement, economic opportunities and socio-environmental factors.

Its mandate also includes analysing structural population changes among religious and social communities.

It may recommend policy, legislative, administrative and institutional measures.

The Committee is expected to submit its report within one year, extendable by up to six months.

Governance and Constitutional Safeguards

Scientific methodology: Population trends should distinguish clearly among fertility, migration and socio-economic causes.

Institutional clarity: Census, electoral administration and immigration enforcement perform different legal functions.

Data protection: Convergence of administrative datasets requires safeguards against profiling, privacy breaches and misuse.

Constitutional limits: Policies must remain consistent with Article 14, Article 15 and privacy under Article 21.

Evidence-based use: Demographic data should support planning, welfare delivery, public health, resource allocation and legitimate security objectives.

FAQs

Q1. Which ministry conducts the Census of India?
The Ministry of Home Affairs, through the Office of the Registrar General & Census Commissioner, India.

Q2. Which ministry oversees NFHS?
The Ministry of Health and Family Welfare, with IIPS providing coordination and technical guidance.

Q3. What is special about Census 2027?
It will be India’s first fully digital Census and will include caste enumeration.

Q4. What does the Civil Registration System record?
It continuously records births, deaths and stillbirths.

Q5. What does the Sample Registration System provide?
It provides estimates of major fertility and mortality indicators, including birth rate, death rate and infant mortality.