What is Doctrine of Basic Structure (Evolution)?
The Doctrine of Basic Structure is a judicially-evolved limitation on Parliament's constituent power. It holds that while Parliament can amend any part of the Constitution under Article 368, it cannot abrogate or destroy its fundamental identity — features such as the supremacy of the Constitution, democracy, secularism, federalism, the rule of law, judicial review and the separation of powers. The doctrine reconciles the need for constitutional flexibility with the need to protect the Constitution's core from transient majorities.
How the Doctrine Evolved
The doctrine was not born in a single judgment but evolved through a tug-of-war between Parliament and the Supreme Court.
| Stage | Case / Amendment | Year | What it held |
|---|---|---|---|
| Early view | Shankari Prasad v. Union of India | 1951 | Parliament can amend fundamental rights under Article 368 |
| Reaffirmed (with doubt) | Sajjan Singh v. State of Rajasthan | 1965 | Upheld amending power; dissent first hinted at "basic features" |
| Reversal | Golak Nath v. State of Punjab | 1967 | Parliament cannot amend/curtail fundamental rights |
| Parliament's response | 24th Constitutional Amendment | 1971 | Restored Parliament's power to amend any part, including FRs |
| Doctrine born | Kesavananda Bharati v. State of Kerala | 1973 | 13-judge bench, 7:6 — Parliament can amend but not destroy the "basic structure" |
| First application | Indira Nehru Gandhi v. Raj Narain | 1975 | Struck down part of the 39th Amendment shielding the PM's election |
| Reaffirmation | Minerva Mills v. Union of India | 1980 | Struck down clauses of the 42nd Amendment; limited amending power is itself basic |
| Ninth Schedule line | Waman Rao v. Union of India | 1981 | Fixed 24 April 1973 as the cut-off for reviewing Ninth Schedule laws |
| Federalism/secularism | S.R. Bommai v. Union of India | 1994 | Declared federalism and secularism part of the basic structure |
| Ninth Schedule review | I.R. Coelho v. State of Tamil Nadu | 2007 | 9-judge bench — laws added to Ninth Schedule after 24 Apr 1973 are open to judicial review |
| Latest major application | NJAC / 99th Amendment case | 2015 | 4:1 — struck down the 99th Amendment as violating judicial independence |
Significance
The doctrine establishes constitutional supremacy over parliamentary supremacy, making the Constitution — not Parliament — the ultimate sovereign. It empowers the judiciary to review even constitutional amendments, a power unusual in democracies that follow strict parliamentary sovereignty. By protecting features like free and fair elections, judicial review and federalism, it has acted as a bulwark against authoritarian overreach, most notably during and after the Emergency (1975–77).
Current Status (as of June 2026)
The doctrine remains firmly entrenched and uncodified — the Supreme Court has deliberately never given an exhaustive list of "basic features", allowing courts to identify them case by case. The most recent landmark application was the 2015 NJAC judgment, which reaffirmed judicial independence and the collegium system as part of the basic structure. The doctrine continues to be invoked in debates over the limits of amending power and centre-state relations.
UPSC Angle
Map the chronology (Shankari Prasad → Golak Nath → Kesavananda → Minerva Mills → Coelho → NJAC) and memorise which features have been judicially declared "basic". For Mains, frame answers around the tension between constitutional and parliamentary supremacy, and the judiciary's role as guardian of the Constitution. Do not confuse the 24th Amendment (restored amending power) with the 42nd Amendment (the "Mini-Constitution", partly struck down in Minerva Mills).
BharatNotes