Delimitation Commission of India
Table of Contents
ToggleConstitutional & Legal Status
- The Delimitation Commission (also known as the Boundary Commission) is an Independent Statutory Body constituted by the Government of India under the Delimitation Commission Act.
- Its primary responsibility is to redraw the boundaries of Parliamentary and State Legislative Assembly constituencies based on the latest Census, as mandated by the Constitution.
- The constitutional basis for delimitation is provided under Articles 82 and 170.
Objectives
The Delimitation Commission aims to:
- Ensure equal representation by maintaining a nearly equal population in each constituency.
- Reflect population changes after every Census.
- Rationalize the boundaries of constituencies.
- Determine the number and extent of reserved constituencies for Scheduled Castes (SCs) and Scheduled Tribes (STs).
- Strengthen the principle of “One Person, One Vote, One Value.”
Constitutional Provisions
| Article | Provision |
|---|---|
| Art. 81 | Allocation of Seats in the Lok Sabha |
| Art. 82 | Readjustment of Lok Sabha Constituencies after each Census |
| Art. 170 | Readjustment of Assembly Constituencies after each Census |
| Art. 327 | Parliament’s Power to Make Laws relating to Elections |
| Art. 329 | Bar to Judicial Interference in Electoral Matters |
Composition
The Delimitation Commission generally consists of:
- Chairperson – A Retired Judge of the Supreme Court.
- Chief Election Commissioner (CEC) or an Election Commissioner nominated by the CEC.
- State Election Commissioners of the concerned States/Union Territories (Ex-officio Members).
Associate Members
For each concerned State:
- Five Members of Lok Sabha
- Five Members of the State Legislative Assembly
are associated with the Commission in an advisory capacity.
Exam Note: Associate Members do not have voting rights.
Appointment
- The Commission is constituted by the Central Government through a Delimitation Commission Act enacted by Parliament.
Functions
Delimitation of Constituencies
- Redraw the boundaries of:
- Lok Sabha Constituencies
- State Legislative Assembly Constituencies
based on the latest Census for which delimitation is legally permitted.
Reservation of Seats
Determine constituencies reserved for:
- Scheduled Castes (SCs)
- Scheduled Tribes (STs)
according to their population.
Rationalisation
- Remove disparities in population among constituencies.
- Improve geographical compactness and administrative convenience.
Publication of Orders
- Publish the final Delimitation Orders after considering public objections and suggestions.
Powers of the Commission
- The orders of the Delimitation Commission have the force of law.
- They cannot be challenged in any Court of Law.
- Once published in the Gazette of India, the orders become final and binding.
- Parliament or State Legislatures cannot modify the Delimitation Orders.
Procedure
The Commission generally follows these steps:
- Collect Census data.
- Prepare Draft Delimitation Proposals.
- Invite Public Objections and Suggestions.
- Hold Public Hearings.
- Publish Final Orders.
- Orders come into effect on the date notified by the President of India.
List of Delimitation Commissions in India
| Commission | Basis |
|---|---|
| 1952 | 1951 Census |
| 1963 | 1961 Census |
| 1973 | 1971 Census |
| 2002 | 2001 Census |
Chairman of the 2002 Delimitation Commission
- Justice Kuldip Singh (Retired Judge, Supreme Court of India)
Delimitation Freeze
42nd Constitutional Amendment Act, 1976
- Froze the allocation of Lok Sabha and State Assembly seats among States based on the 1971 Census until after the 2001 Census.
- This was done to ensure that States successfully implementing Family Planning were not disadvantaged.
84th Constitutional Amendment Act, 2001
- Extended the freeze on the allocation of seats among States until the first Census after 2026.
- However, it allowed readjustment of constituency boundaries and SC/ST reserved seats based on the 2001 Census, without changing the total number of seats.
87th Constitutional Amendment Act, 2003
- Permitted delimitation using the 2001 Census instead of the 1991 Census, while continuing the freeze on the total number of seats.
Present Position (Updated)
- The 2002 Delimitation Commission implemented delimitation using the 2001 Census.
- Its recommendations came into effect in 2008.
- No nationwide delimitation has been carried out after 2008.
- The next nationwide delimitation exercise is expected after the publication of the first Census conducted after 2026, as required by the Constitution.
Exam Note: Although the constitutional freeze ends after the first Census conducted post-2026, the actual delimitation exercise will take place only after that Census is completed and Parliament enacts the necessary law.
Delimitation vs Allocation of Seats
Delimitation
Means:
- Redrawing the boundaries of constituencies.
- Reallocating SC/ST reserved constituencies.
Allocation of Seats
Means:
- Determining the number of Lok Sabha seats allotted to each State.
- This remains frozen until the first Census after 2026.
Delimitation Commission vs Election Commission
| Basis | Delimitation Commission | Election Commission |
|---|---|---|
| Nature | Statutory Body | Constitutional Body |
| Legal Basis | Delimitation Commission Act | Article 324 |
| Main Function | Delimit Constituencies | Conduct Elections |
| Chairperson | Retired Supreme Court Judge | Chief Election Commissioner |
| Orders | Final and Binding | Subject to Constitutional & Judicial Review where applicable |
Reserved Seats after Delimitation (2008)
| Category | Before Delimitation (1976) | After Delimitation (2008) |
|---|---|---|
| SC Reserved Seats | 79 | 84 |
| ST Reserved Seats | 41 | 47 |
| General (Unreserved) Seats | 423 | 412 |
| Total Lok Sabha Seats | 543 | 543 |
Note: The total strength of the Lok Sabha remained unchanged (543 seats). Only the distribution of reserved and general constituencies was revised.
Important Constitutional Amendments
| Amendment | Significance |
|---|---|
| 42nd Amendment Act, 1976 | Froze allocation of seats among States based on the 1971 Census. |
| 84th Amendment Act, 2001 | Extended the freeze until the first Census after 2026 and allowed readjustment of constituencies based on the 2001 Census. |
| 87th Amendment Act, 2003 | Allowed delimitation using the 2001 Census instead of the 1991 Census. |
Important Constitutional Articles
| Article | Provision |
|---|---|
| 81 | Composition and Allocation of Seats in Lok Sabha |
| 82 | Delimitation of Lok Sabha Constituencies |
| 170 | Delimitation of State Assembly Constituencies |
| 327 | Parliament’s Power to Make Election Laws |
| 329 | Bar to Judicial Interference in Electoral Matters |

