Basic Structure Doctrine is the judicial principle that certain fundamental features of the Constitution of India cannot be altered or destroyed by Parliament through constitutional amendments under Article 368. Under Indian law, this doctrine was established by the Supreme Court in Kesavananda Bharati v. State of Kerala (1973) 4 SCC 225, where a 13-judge Constitution Bench held by a 7-6 majority that Parliament's amending power is subject to an implied limitation — it cannot be used to abrogate the basic structure of the Constitution.
Legal definition
The Basic Structure Doctrine has no statutory definition. It is an entirely judge-made doctrine that imposes an implied limitation on the amending power conferred by Article 368 of the Constitution. Article 368 itself provides:
Article 368(1): "Notwithstanding anything in this Constitution, Parliament may in exercise of its constituent power amend by way of addition, variation or repeal any provision of this Constitution in accordance with the procedure laid down in this article."
The Basic Structure Doctrine holds that despite the seemingly unlimited language of Article 368, there are certain features of the Constitution that are so fundamental to its identity and character that they lie beyond the reach of the amending power. The power to "amend" does not include the power to "destroy." Parliament can modify, supplement, or restructure constitutional provisions, but it cannot use Article 368 to obliterate a basic feature.
No exhaustive list of basic features has ever been laid down by the Supreme Court. The content of the basic structure has been identified incrementally across multiple decisions. Among the features recognised as basic are: supremacy of the Constitution, republican and democratic form of government, secular character, separation of powers, federal character, sovereignty, unity and integrity of India, judicial review, fundamental rights, harmony between Fundamental Rights and Directive Principles, the rule of law, free and fair elections, limited amending power, independence of the judiciary, and the principle of equality.
How courts have interpreted this term
Kesavananda Bharati v. State of Kerala [(1973) 4 SCC 225]
The foundational decision. A 13-judge Constitution Bench — the largest ever assembled — heard arguments over 68 working days. By a 7-6 majority, the Court held that while Parliament has wide powers to amend the Constitution under Article 368, this power does not extend to altering the "basic structure or framework of the Constitution." The majority did not agree on a single list of basic features, but individual opinions identified supremacy of the Constitution, republican form of government, secular character, separation of powers, and the federal character as basic features. Justice H.R. Khanna's swing vote — concurring with the majority on the basic structure limitation while disagreeing on certain Fundamental Rights issues — proved decisive.
Indira Nehru Gandhi v. Raj Narain [(1975) Supp SCC 1]
The first application of the Basic Structure Doctrine to strike down a constitutional amendment. The Supreme Court struck down clauses (4) and (5) of the newly inserted Article 329A, introduced by the 39th Amendment, which sought to place the election of the Prime Minister beyond judicial scrutiny. The Court held that free and fair elections and the rule of law are basic features, and an amendment that takes away judicial review of the Prime Minister's election destroys these features.
Minerva Mills Ltd. v. Union of India [(1980) 3 SCC 625]
A Constitution Bench struck down Section 55 of the 42nd Amendment, which had amended Article 368 to declare that there shall be no limitation on Parliament's amending power and that no such amendment shall be called in question in any court. The Court held that the limited nature of the amending power is itself a basic feature — Parliament cannot use Article 368 to convert a limited power into an unlimited one. The Court also added the harmony and balance between Fundamental Rights and Directive Principles to the list of basic features.
I.R. Coelho v. State of Tamil Nadu [(2007) 2 SCC 1]
A nine-judge bench held that even laws placed in the Ninth Schedule of the Constitution (which were traditionally immune from judicial review under Article 31B) can be struck down if they violate the basic structure. This decision closed the last remaining loophole that Parliament could have used to circumvent the Basic Structure Doctrine.
Why this matters
The Basic Structure Doctrine is India's most significant contribution to constitutional jurisprudence worldwide, and it has influenced constitutional courts in Bangladesh, Pakistan, Kenya, Belize, and other jurisdictions. It operates as the ultimate check on legislative power — even a constitutional amendment passed with the requisite majority under Article 368 and ratified by state legislatures (where required) can be struck down if the Supreme Court determines that it destroys a basic feature.
For practitioners, the doctrine is relevant whenever a constitutional amendment is challenged. The petitioner must demonstrate that the impugned amendment damages or destroys a feature that has been recognised — or that the Court should recognise — as part of the basic structure. The respondent (typically the Union of India) must show that the amendment merely modifies a provision without altering a basic feature. Because the list of basic features is not closed, litigation frequently involves arguments about whether a particular constitutional principle qualifies as "basic."
The doctrine also has a practical constraining effect on legislative drafting. Parliament, when framing constitutional amendment bills, must now consider whether the proposed changes could be characterised as violating the basic structure. This has created a constitutional culture where even the political branches acknowledge implied limits on the amending power — a development that would have been unthinkable before 1973 when the prevailing view (per Shankari Prasad and Sajjan Singh) was that Parliament's amending power was unlimited.
A critical point of nuance is that the Basic Structure Doctrine applies only to constitutional amendments — not to ordinary legislation. Ordinary laws are tested against Part III (Fundamental Rights) and other constitutional provisions through standard judicial review. The basic structure test applies only when the instrument under challenge is a constitutional amendment itself.
Related terms
Constitutional framework:
Features recognised as basic:
- Judicial Review
- Fundamental Rights
- Directive Principles of State Policy
- Article 32 (Right to Constitutional Remedies)
Frequently asked questions
What are the basic features of the Indian Constitution?
There is no closed or exhaustive list. The Supreme Court has identified basic features incrementally across multiple cases. Recognised features include: supremacy of the Constitution, republican and democratic form of government, secular character, separation of powers, federal character, unity and integrity of the nation, judicial review, fundamental rights, harmony between Fundamental Rights and Directive Principles, rule of law, free and fair elections, limited amending power under Article 368, independence of the judiciary, and the principle of equality.
Can Parliament override the Basic Structure Doctrine?
No. The Supreme Court in Minerva Mills (1980) held that the limited nature of the amending power is itself a basic feature. Parliament cannot amend Article 368 to remove the basic structure limitation because doing so would itself violate the basic structure. The doctrine is therefore self-reinforcing — it cannot be circumvented by any constitutional amendment.
Does the Basic Structure Doctrine apply to ordinary laws?
No. The Basic Structure Doctrine applies only to constitutional amendments under Article 368. Ordinary legislation is subject to standard judicial review — it must conform to Fundamental Rights under Part III and must be within the legislative competence of the enacting legislature under the Seventh Schedule. Only when a constitutional amendment is challenged does the Court apply the basic structure test.
Has the Basic Structure Doctrine been used outside India?
Yes. The doctrine has been adopted or referenced by courts in Bangladesh (Anwar Hossain Chowdhury v. Bangladesh, 1989), Pakistan, Kenya, and Belize, among others. It is considered one of India's most significant exports in constitutional jurisprudence and represents a unique approach to limiting constituent power that does not exist in most other constitutional systems.
This entry is part of the Veritect Indian Legal Glossary, a comprehensive reference of Indian legal terminology grounded in statutory text and judicial interpretation.
Last updated: 2026-03-27. Veritect provides this content for informational purposes and does not constitute legal advice.