Delimitation in India: Lok Sabha Seats and Federal Concerns
Why in the news
Tamil Nadu’s Chief Minister voiced worry over coming changes to constituencies, putting delimitation back in the debate. The next exercise is due after the first Census following 2026, and parties are arguing over how the delayed Census affects federalism and representation.
Key facts
- Delimitation: deciding the number and boundaries of seats for the Lok Sabha and State Assemblies.
- Authority: a Delimitation Commission constituted under an Act of Parliament.
- Earlier exercises followed the 1951, 1961 and 1971 Census.
- Seats were frozen at 543 on the 1971 Census (population 54.8 crore) to encourage population control; the freeze lifts after the first Census post-2026.
Issues
- Growth was faster in northern States such as UP, Bihar, MP and Rajasthan.
- Southern and smaller northern States (Kerala, Tamil Nadu, Punjab, Himachal Pradesh, Uttarakhand, the Northeast) grew slowly after effective population control.
- Fresh Census-based allocation may cut their representation.
- Federal balance could tilt: big northern States gain weight, southern share may slip from 24% to near 19%, angering States that managed population well.
| Scenario | Lok Sabha size | Method |
|---|---|---|
| One | 543 (unchanged) | Redistribute seats among States by latest population |
| Two | 848 | Raise seats in proportion across all States |
Way forward
- Keep the 543 cap: the U.S. House has held at 435 since 1913; India kept 543 MPs for five decades while population rose from about 55 crore to 145 crore, and is expected to peak at 165-170 crore.
- More MLAs: raise Assembly strength in each State according to demographics.
- Weighted voting: give MPs different vote weights by population.
- Rajya Sabha: extra representation could compensate smaller States.
Exam angle
- Seat freeze: 543, based on the 1971 Census.
- Body: Delimitation Commission, created by an Act of Parliament.
- Proposed seat figure under the expansion option: 848.