Basic Structure Doctrine of the Indian Constitution for UPSC

By Dooit UPSC expert · 15 July 2026 · 11 min read

The basic structure doctrine is a judge-made principle that says Parliament can amend any part of the Constitution under Article 368, but it cannot damage or destroy the Constitution's core framework — features like the supremacy of the Constitution, rule of law, separation of powers, judicial review, federalism and secularism. It was laid down in the Kesavananda Bharati case (1973) by a 13-judge bench, 7:6.

In three decades of coaching, I have watched aspirants memorise the phrase "basic structure" without ever understanding the fight behind it. That is a costly shortcut. This one doctrine is the reason the Indian Constitution has survived every attempt to bend it, and it sits at the exact junction of Fundamental Rights, the amending power and judicial review — three of the highest-yielding areas in GS Paper 2. Get this right and a whole cluster of Polity questions becomes automatic. So let us do it the way toppers do: case by case, with the logic intact, not just the case names crammed.

What the basic structure doctrine actually means

Start with the plain idea. A Constitution has to be flexible enough to change with the times, otherwise it dies. That is why Article 368 gives Parliament the power to amend it. But if Parliament could amend anything — including the features that make India a democratic republic — then a temporary majority could quietly convert the country into something the framers never intended. The basic structure doctrine solves this tension. It says: yes, amend freely, but there is an inner core you cannot touch. The Constitution's identity is off-limits even to Parliament.

Here is the point most beginners miss. The words "basic structure" appear nowhere in the Constitution. There is no Article that lists them. It is entirely a creation of the Supreme Court, built through a series of judgments. That is precisely why examiners love it — it forces you to know both the constitutional text (Article 368) and the case law that grew around it.

Article 368: the battleground

Everything turns on Article 368, which lays down Parliament's power and procedure to amend the Constitution. Before you touch the doctrine, fix the mechanics of amendment cold, because Prelims tests them directly:

• Simple majority — some provisions (like creation of new states, citizenship changes) are amended by ordinary law and fall outside Article 368 altogether.
• Special majority — a majority of the total membership of each House and two-thirds of members present and voting. This is the standard Article 368 route.
• Special majority + ratification by half the states — needed for federal provisions (election of the President, distribution of legislative powers, representation of states, Article 368 itself, and more).

The doctrine sits on top of all this. Even when Parliament follows the correct procedure with the correct majority, the amendment can still be struck down if it wounds the basic structure. Procedure alone does not save an amendment — that is the whole revolution of Kesavananda.

The road to Kesavananda: how the fight began

The doctrine did not arrive overnight. It was the result of a long tug-of-war between Parliament and the judiciary over property rights and land reform.

In Shankari Prasad (1951) and again in Sajjan Singh (1965), the Supreme Court held that Parliament's amending power under Article 368 was wide enough to amend even Fundamental Rights. An amendment, the Court reasoned, was not an ordinary "law" under Article 13, so it could not be challenged for violating a Fundamental Right.

Then came the turn. In Golaknath v. State of Punjab (1967), an eleven-judge bench, by a wafer-thin 6:5, reversed course and held that Parliament could not amend Fundamental Rights at all — treating a constitutional amendment as "law" under Article 13. This was a dramatic shift, and it set Parliament and the Court on a collision path. Parliament hit back with the 24th Amendment (1971), explicitly asserting its power to amend any part of the Constitution, including Fundamental Rights, and adding that Article 13 would not apply to amendments.

That confrontation is what landed on the desk of the largest bench the Court has ever assembled.

Kesavananda Bharati (1973): the judgment that changed everything

The petitioner was Swami Kesavananda Bharati, head of a religious mutt in Kerala, challenging Kerala land-reform laws — but the real question was the reach of Article 368. A bench of 13 judges heard it, and by a razor-thin 7:6 majority delivered a landmark that constitutional lawyers still quote every week.

The Court did two things at once, and you must hold both together:

• It overruled Golaknath and held that Parliament can amend any part of the Constitution, including Fundamental Rights.
• But it added a crucial limit: Parliament cannot use Article 368 to "damage, emasculate, destroy, abrogate, change or alter the basic structure" of the Constitution.

In one stroke, the Court both expanded and fenced Parliament's power. It upheld the 24th Amendment but read an implied limitation into it. Note the date — 24 April 1973 — because it becomes the cut-off line in later cases. If a student can explain why the 7:6 split matters (it was the narrowest possible margin for so foundational a principle), they are already writing at Mains level.

Landmark cases at a glance

How the doctrine was tested and refined

Kesavananda was not the end of the story — it was the beginning of a decade of pressure-testing.

In Indira Nehru Gandhi v. Raj Narain (1975), the Court struck down a part of the 39th Amendment that tried to place the Prime Minister's election beyond judicial scrutiny. Free and fair elections and judicial review, it said, are part of the basic structure. This was the first time the doctrine was actually used to invalidate an amendment.

The most important sequel is Minerva Mills v. Union of India (1980). After the Emergency, the 42nd Amendment (1976) had inserted clauses (4) and (5) into Article 368, declaring that there would be no limit on Parliament's amending power and that no amendment could be questioned in any court. The Court struck both clauses down. Its reasoning is Mains gold: limited amending power is itself a basic feature — if Parliament had unlimited power, it could destroy the Constitution, which Article 368 never intended. Minerva Mills also crystallised the idea that the balance between Fundamental Rights and Directive Principles is part of the basic structure — neither can be sacrificed wholesale for the other.

Then Waman Rao (1981) answered a practical question: from when does the doctrine apply? The Court held it applies prospectively — only to constitutional amendments enacted after 24 April 1973, the date of the Kesavananda judgment. Amendments before that date were left undisturbed to avoid chaos. This is why that 1973 date keeps returning; underline it.

What counts as "basic structure" — and what doesn't

Here is the honest part every aspirant must accept: there is no closed, official list of what forms the basic structure. The Court deliberately kept it open, deciding case by case. Over the years, features held to be part of the basic structure include the supremacy of the Constitution, the sovereign, democratic and republican character of the polity, secularism, separation of powers, federalism, judicial review, the rule of law, free and fair elections, the harmony between Fundamental Rights and Directive Principles, and the independence of the judiciary.

What is not automatically basic structure is just as important. A provision being important, or even being a Fundamental Right, does not by itself make it part of the basic structure. The test is whether removing it would destroy the Constitution's identity. This nuance is exactly where UPSC likes to set a trap in a "which of the following statements is/are correct" question.

S.R. Bommai and I.R. Coelho: the doctrine spreads

Two later cases extended the doctrine beyond the pure amendment question, and both are heavily tested.

S.R. Bommai (1994) brought the doctrine into Centre-state relations. The Court held that federalism, secularism and democracy are part of the basic structure, and — crucially — that the imposition of President's Rule under Article 356 is subject to judicial review. A Governor's report and a Presidential proclamation are no longer beyond the courts. This single case is why Article 356 is now used far more sparingly than in the decades before.

I.R. Coelho (2007), decided by a nine-judge bench, closed a loophole around the Ninth Schedule. Laws placed in the Ninth Schedule are protected from challenge for violating Fundamental Rights. But the Court held that any law added to the Ninth Schedule after 24 April 1973 can still be tested against the basic structure — specifically, whether it violates the core of Articles 14, 19 and 21. In short: the Ninth Schedule is not an unbreakable shield anymore. Notice the same 1973 cut-off returning yet again — that date is the spine of this entire topic.

How UPSC actually tests the basic structure doctrine

Let me be specific about the exam, because that is what you are here for.

In Prelims, expect factual matching — case with year, case with the principle it settled, or true/false statements about Article 368 and the amending majorities. The doctrine also appears indirectly through questions on Fundamental Rights, the Preamble and the amendment procedure. Master the case-and-principle table above and you neutralise almost all of these.

In Mains (GS Paper 2), the doctrine is an analytical instrument, not a memory dump. A typical question asks you to discuss the doctrine as a check on parliamentary supremacy, or to weigh judicial review against the elected legislature's will. The strong answer does three things: it states the doctrine and its Kesavananda origin in one crisp line, it uses two or three cases as evidence (Minerva Mills and Bommai carry the most weight), and it takes a balanced position — the doctrine protects constitutional identity, but critics call it judicial over-reach because unelected judges decide what is "basic." Show both sides and you signal maturity.

For a broader plan on how this fits your Polity preparation, see our UPSC Polity preparation strategy. And because this doctrine grew directly out of the Fundamental Rights fight, revise it alongside our guides to the Fundamental Rights, the Directive Principles of State Policy and the Preamble of the Constitution — the four topics interlock, and examiners test them as one web.

The bigger picture you should carry into the exam hall

Step back and the doctrine reads like a single argument, not eight scattered cases. Parliament wanted the power to change the Constitution; the Court agreed but drew a line at the Constitution's soul. Every case after 1973 is just the Court patrolling that line — against an over-reaching amendment (Minerva Mills), against a stretched emergency power (Bommai), against a misused Schedule (Coelho). When you can tell that story in your own words, you are no longer memorising Polity — you are understanding it. And that shift is exactly what separates a Prelims-cleared candidate from one who also gets marks in Mains and the interview.