India has counted its people every ten years since 1881 — an unbroken chain through famine, war and Partition. The 2021 Census was the first to break it, delayed by COVID-19 and then held back for years. India spent over a decade planning on 2011 numbers.
Census & Demography
Census & Demography
India's decennial Census is one of the world's largest peacetime exercises — a full count of every person. The last was in 2011; the next, notified for a reference date of 1 March 2027, will be India's first fully digital census and its first to count caste since 1931. The counter shows India's estimated population (illustrative).
2027
Reference date (1 March)
Rs 11,718 cr
Census outlay
1st digital
Self-enumeration via app
Population (2027, est.)
| Year | Population (est.) |
|---|---|
| 2011 | 121 crore |
| 2014 | 127 crore |
| 2017 | 132 crore |
| 2020 | 138 crore |
| 2023 | 141 crore |
| 2027 | 142 crore |
2011
0crore
Population (est.)
20112027
Since 2011
Added
+21 crore
2011
121 crore
2027
142 crore
Why it matters Almost everything relies on Census numbers — welfare targeting, planning, the share of seats a state gets, and eventually the delimitation of constituencies. Running on 2011 data for over a decade left policy working with an outdated map of the country; a fresh, digital, caste-counted census resets that foundation.
- The next Census has a reference date of 1 March 2027 (1 October 2026 for snow-bound areas).
- It will run in two phases with a total outlay of about Rs 11,718 crore.
- It is India's first digital census, with a self-enumeration option via app.
- For the first time since 1931, it will enumerate caste beyond SC/ST categories.
History
Notable milestone
In 2025 the government notified the next Census, with a reference date of 1 March 2027 (1 October 2026 for snow-bound Himalayan areas). It will be India's first fully digital census — and, for the first time since 1931, it will count caste beyond the SC/ST categories.
How it works
The count runs in two phases: houselisting (mapping every dwelling and its amenities), then population enumeration (counting every person). Enumerators use a mobile app, and households can opt to self-enumerate online — a major shift from paper schedules — with a total outlay of about Rs 11,718 crore.
Outlook
Census data underpins almost everything: how many seats a state gets, where welfare and infrastructure go, and — eventually — the delimitation of constituencies and women's reservation. Fresh, granular data lets planning match reality instead of a 15-year-old snapshot.
The road ahead
Counting ~140 crore people is a colossal task, and doing it digitally for the first time — while adding a politically sensitive caste count — raises the stakes on accuracy and trust. How the caste data is collected, verified and used will be closely watched, as will the eventual delimitation it feeds.
By the numbers
1 March 2027 — Census reference date. ~Rs 11,718 crore total outlay. Two phases — houselisting, then population count. First digital census, with self-enumeration. First caste count since 1931. Sources: Registrar General of India, PIB.
Source: Registrar General of India / UN projections — population estimate; next census reference date 1 Mar 2027. Curve illustrative.