The ‘Basic Structure Doctrine’ was enunciated by the Supreme Court during the:

1. Amending Power of Parliament (Article 368) (basic)

Welcome to your first step in understanding how the Indian Constitution evolves! Think of a Constitution not as a static, frozen document, but as a living instrument. To ensure it doesn't become obsolete as society changes, the makers of our Constitution included Article 368 in Part XX. This article grants Parliament the power to amend (add, vary, or repeal) any provision of the Constitution to keep it in tune with the times. Indian Polity, M. Laxmikanth, Amendment of the Constitution, p.123

However, the power to amend is not the same as the power to make ordinary laws. There is a vital distinction between Constituent Power (the power to change the Constitution) and Legislative Power (the power to make regular laws like the Motor Vehicles Act). In the early years of the Republic, cases like Shankari Prasad (1951) and Sajjan Singh (1964) established that a Constitutional Amendment is not considered a "law" under Article 13. This meant that while regular laws could be struck down if they violated Fundamental Rights, a Constitutional Amendment under Article 368 could technically change even those rights. Indian Polity, M. Laxmikanth, Basic Structure of the Constitution, p.127

The procedure for amendment is unique and specifically designed to be neither too flexible (like the UK) nor too rigid (like the USA). Here is how it works:

• Initiation: An amendment can only be started by introducing a bill in either House of Parliament (Lok Sabha or Rajya Sabha). State legislatures have no power to initiate a constitutional amendment. Introduction to the Constitution of India, D. D. Basu, Procedure for Amendment, p.191
• Introduction: The bill can be introduced by a Minister or a Private Member, and unlike some other bills, it does not require prior permission from the President.
• The Majority: It must be passed by a Special Majority in each house—meaning more than 50% of the total membership and 2/3rd of those present and voting. There is no provision for a joint sitting if the two houses disagree. Indian Polity, M. Laxmikanth, Amendment of the Constitution, p.123
• Assent: Once passed by Parliament (and ratified by states if it affects federal features), the President must give their assent. They cannot return the bill or withhold assent.

Feature	Ordinary Law	Constitutional Amendment (Art. 368)
Initiation	Parliament or State Legislature	Parliament only
Majority Required	Simple Majority	Special Majority
Joint Sitting	Possible if there is a deadlock	Not permitted
President's Role	Can return for reconsideration	Must give assent (24th Amendment, 1971)

Sources: Indian Polity, M. Laxmikanth, Amendment of the Constitution, p.123; Indian Polity, M. Laxmikanth, Basic Structure of the Constitution, p.127; Introduction to the Constitution of India, D. D. Basu, Procedure for Amendment, p.191

2. The Supremacy of the Constitution & Judicial Review (basic)

In the Indian democratic setup, we do not follow the principle of 'Parliamentary Sovereignty' like the United Kingdom; instead, we uphold the Supremacy of the Constitution. This means the Constitution is the supreme law of the land (lex loci), and every organ of the state—the Legislature, the Executive, and the Judiciary—derives its authority, powers, and limitations from this single document. As noted in judicial observations, for any statute law to be valid, it must strictly conform to the constitutional requirements Indian Polity, M. Laxmikanth(7th ed.), Judicial Review, p. 297.

To protect this supremacy, the Constitution equips the Judiciary with a powerful tool known as Judicial Review. This is the power of the Supreme Court and the High Courts to examine the constitutionality of legislative enactments and executive orders. If a law or order is found to be ultra-vires (beyond the power) or violative of the Constitution, the courts can declare it null and void, making it unenforceable by the government Indian Polity, M. Laxmikanth(7th ed.), High Court, p. 360.

Feature	Constitutional Supremacy (India)	Parliamentary Sovereignty (UK)
Source of Power	The Constitution	The Parliament
Judicial Role	Can strike down laws as unconstitutional	Cannot strike down primary legislation
Amendment	Limited by the Constitution itself	Parliament can change any law by simple majority

Interestingly, the phrase 'Judicial Review' is nowhere used in the text of the Constitution. However, the power is explicitly conferred through various provisions, most notably Article 13, which declares that any law inconsistent with Fundamental Rights shall be void Indian Polity, M. Laxmikanth(7th ed.), Judicial Review, p. 297. The scope of this review generally falls under three grounds: 1) infringement of Fundamental Rights, 2) lack of legislative competence (e.g., a state making a law on a union subject), and 3) violation of any other constitutional provision Indian Polity, M. Laxmikanth(7th ed.), Judicial Review, p. 298. This makes the Judiciary the 'sentinel on the qui vive' or the watchful guardian of our rights and the Constitution's integrity.

Sources: Indian Polity, M. Laxmikanth(7th ed.), Judicial Review, p.297; Indian Polity, M. Laxmikanth(7th ed.), Judicial Review, p.298; Indian Polity, M. Laxmikanth(7th ed.), High Court, p.360

3. Conflict: Fundamental Rights vs. Directive Principles (intermediate)

To understand the Basic Structure Doctrine, we must first look at the long-standing tug-of-war between Fundamental Rights (FRs) and Directive Principles of State Policy (DPSPs). Think of FRs as the rights of the individual (Part III) and DPSPs as the goals of the society (Part IV). While FRs are justiciable (enforceable by courts), DPSPs are non-justiciable guidelines for the State D.D. Basu, Introduction to the Constitution of India, p.179. The conflict arises when the government passes a law to achieve a social goal (DPSP) that accidentally or intentionally tramples upon an individual's right (FR).

In the early years, the Supreme Court took a literal view. In the landmark Champakam Dorairajan case (1951), the Court ruled that Fundamental Rights were superior to Directive Principles. It famously stated that DPSPs must run as a "subsidiary" to FRs and cannot override them M. Laxmikanth, Indian Polity, p.624. This created a hurdle for the government, which was trying to implement land reforms and social justice measures that often required restricting private property rights.

The relationship evolved through a series of constitutional amendments and judgements, eventually leading to a more balanced approach. The Parliament tried to give DPSPs absolute priority through the 42nd Amendment (1976), but the Supreme Court intervened in the Minerva Mills case (1980). The Court struck down this attempt, declaring that the Indian Constitution is founded on the "bedrock of balance" between Part III and Part IV D.D. Basu, Introduction to the Constitution of India, p.47. Giving absolute primacy to one over the other would disturb the Constitution's harmony.

Feature	Fundamental Rights (Part III)	Directive Principles (Part IV)
Nature	Individualistic; Negative obligations (State shouldn't do X)	Socialistic; Positive obligations (State should do Y)
Enforceability	Justiciable (Can go to court via Art. 32)	Non-justiciable (Courts cannot compel implementation)
Current Status	Generally superior, but balanced with Art 39(b) & (c)	Subordinate, except laws implementing Art 39(b) & (c)

Sources: D.D. Basu, Introduction to the Constitution of India, Directive Principles of State Policy, p.179; M. Laxmikanth, Indian Polity, Landmark Judgements and Their Impact, p.624; D.D. Basu, Introduction to the Constitution of India, Outstanding Features of our Constitution, p.47

4. Types and Methods of Constitutional Amendment (intermediate)

To understand how the 'Basic Structure' is protected, we must first understand how the Constitution can be changed. The Indian Constitution is often described as neither as rigid as the American Constitution (which is very hard to amend) nor as flexible as the British Constitution (which can be changed by ordinary law). Instead, it strikes a fine balance to remain a 'living document'. NCERT Class XI, Constitution as a Living Document, p.202.

While Article 368 is the primary source of amending power, the Constitution actually provides for three distinct 'lanes' for amendment, depending on the importance and nature of the provision being changed:

Method	Majority Required	Scope / Examples
Simple Majority	Majority of members present and voting (like an ordinary bill).	Admission of new states, salaries of judges, rules of procedure. Note: These are technically NOT considered amendments under Article 368.
Special Majority	(i) Majority of total membership of each House AND (ii) 2/3rd of members present and voting.	The 'standard' route for most provisions, including Fundamental Rights and Directive Principles.
Special Majority + State Consent	Special Majority in Parliament + Ratification by half of the state legislatures by simple majority.	Provisions affecting the federal structure (e.g., election of the President, distribution of powers between Union and States).

Crucially, the power to initiate an amendment lies only with the Parliament; state legislatures cannot propose a constitutional amendment. NCERT Class XI, Constitution as a Living Document, p.201. Furthermore, unlike ordinary bills, there is no provision for a joint sitting if the two Houses of Parliament disagree on a constitutional amendment bill. D.D. Basu, Procedure for Amendment, p.193. Once passed by both Houses (and ratified by states if necessary), the President must give his assent to the bill; he can neither withhold assent nor return it for reconsideration.

Sources: Indian Polity, M. Laxmikanth, Amendment of the Constitution, p.124; Indian Constitution at Work, NCERT Class XI, Constitution as a Living Document, p.201-202; Introduction to the Constitution of India, D.D. Basu, Procedure for Amendment, p.193

5. Doctrine of Separation of Powers (intermediate)

The Doctrine of Separation of Powers is a fundamental political philosophy designed to prevent the concentration of power in a single authority, which could lead to tyranny. Originating from the French philosopher Montesquieu, the concept suggests that the government should be divided into three distinct branches: the Legislature (to make laws), the Executive (to implement laws), and the Judiciary (to interpret laws and settle disputes). In a strict sense, this means no branch should perform the functions of another, nor should the same person belong to more than one branch.

However, the Indian Constitution does not follow a strict separation of powers like the United States. Instead, it is based on a system of functional overlap and 'checks and balances' Indian Polity, M. Laxmikanth(7th ed.), World Constitutions, p.797. For instance, in our Parliamentary system, the Executive (the Council of Ministers) is actually a part of the Legislature and is collectively responsible to it. This ensures that the executive remains accountable. To maintain the equilibrium, the Constitution also provides for independent bodies like the Election Commission and the CAG, which act as 'bulwarks' of the democratic system Indian Polity, M. Laxmikanth(7th ed.), Salient Features of the Constitution, p.32.

Feature	Strict Separation (e.g., USA)	Checks and Balances (e.g., India)
Membership	Members of one branch cannot be members of another.	Executive is part of the Legislature.
Interdependence	High independence; branches function in silos.	Coordinated functioning; one branch checks the other.
Primary Goal	Absolute prevention of interference.	Accountability and smooth governance.

The Judiciary plays a critical role in this ecosystem by ensuring that neither the Legislature nor the Executive oversteps their constitutional boundaries Exploring Society: India and Beyond, The Parliamentary System, p.154. However, modern challenges like judicial activism have sometimes blurred these lines, where the courts are seen as performing executive functions, leading to debates about 'judicial overreach' Indian Constitution at Work, JUDICIARY, p.137. Ultimately, the Supreme Court has recognized the separation of powers as part of the Basic Structure of the Constitution, meaning Parliament cannot use its amending power to destroy the independence of the Judiciary or the essential balance between these organs.

Sources: Indian Polity, M. Laxmikanth(7th ed.), World Constitutions, p.797; Indian Polity, M. Laxmikanth(7th ed.), Salient Features of the Constitution, p.32; Exploring Society: India and Beyond (NCERT), The Parliamentary System: Legislature and Executive, p.154; Indian Constitution at Work (NCERT), JUDICIARY, p.137

6. Pre-1973 Judicial Evolution (Shankari Prasad to Golak Nath) (exam-level)

To understand the origin of the Basic Structure doctrine, we must first look at the decade-long 'tug-of-war' between the Parliament and the Judiciary. The core of this conflict was a simple but profound question: Can Parliament use Article 368 to take away or abridge the Fundamental Rights guaranteed in Part III? In the early years, the Supreme Court took a literalist and flexible view. In the Shankari Prasad case (1951), the Court ruled that the power to amend the Constitution under Article 368 also included the power to amend Fundamental Rights. The logic was that the word 'law' in Article 13 (which prohibits the State from making laws that abridge rights) only referred to 'ordinary laws' and not 'constituent laws' like constitutional amendments Indian Polity, M. Laxmikanth(7th ed.), Chapter 90, p.624.

This pro-Parliament stance continued through the Sajjan Singh case (1964), but the tide turned dramatically with the landmark Golak Nath case (1967). In a narrow 6:5 majority, an 11-judge bench reversed its previous stand. The Court now declared that Fundamental Rights are given a 'transcendental and immutable' position, making them beyond the reach of Parliament Indian Polity, M. Laxmikanth(7th ed.), Chapter 12, p.127. Crucially, the Court held that a Constitutional Amendment is indeed a 'law' within the meaning of Article 13, and therefore, if an amendment violates a Fundamental Right, it must be declared void.

To avoid complete administrative chaos, the Court in Golak Nath applied the Doctrine of Prospective Overruling. This meant that while the new ruling made amendments to Fundamental Rights illegal, it would only apply to future amendments, leaving past amendments (like the 1st and 17th) intact to ensure stability Indian Polity, M. Laxmikanth(7th ed.), Chapter 90, p.665. Parliament reacted to this 'judicial checkmate' by passing the 24th Amendment Act (1971), which explicitly stated that Parliament has the power to take away any Fundamental Right and that Article 13 does not apply to amendments made under Article 368.

Feature	Shankari Prasad (1951)	Golak Nath (1967)
Status of FRs	Amendable like any other part.	Transcendental and immutable.
Is Amendment a "Law"?	No, Art 13 only covers ordinary law.	Yes, Art 13 covers amendments too.

Sources: Indian Polity, M. Laxmikanth(7th ed.), Chapter 90: Landmark Judgements and Their Impact, p.624; Indian Polity, M. Laxmikanth(7th ed.), Chapter 12: Basic Structure of the Constitution, p.127; Indian Polity, M. Laxmikanth(7th ed.), Chapter 90: Landmark Judgements and Their Impact, p.665

7. The Kesavananda Bharati Case (1973) (exam-level)

The Kesavananda Bharati v. State of Kerala (1973) is often called the "mother of all constitutional cases" in India. It involved the largest bench in the history of the Supreme Court—13 judges—who sat for months to decide a fundamental question: Does Parliament have the power to change any part of the Constitution, even to the point of destroying its essence? In a narrow 7:6 majority, the Court delivered a verdict that fundamentally changed the landscape of Indian democracy. Indian Polity, M. Laxmikanth(7th ed.), Chapter 90, p.626

The Court's decision was a masterful compromise. It overruled the earlier Golak Nath case (1967), which had completely banned Parliament from amending Fundamental Rights. In the Kesavananda case, the Court conceded that Parliament does have the power to amend any part of the Constitution, including Fundamental Rights, under Article 368. However, it introduced a vital caveat: this power is not absolute. Parliament cannot use its amending power to alter, damage, or destroy the 'Basic Structure' of the Constitution. Think of it like this: you can renovate every room in a house, but you cannot tear down the foundation that holds the house up. Indian Polity, M. Laxmikanth(7th ed.), Chapter 12, p.129

Feature	Golak Nath Case (1967)	Kesavananda Bharati (1973)
Power to Amend FRs	Parliament cannot amend Fundamental Rights.	Parliament can amend Fundamental Rights.
Scope of Article 368	Limited; cannot touch Part III.	Wide, but subject to the "Basic Structure" limitation.
Key Outcome	Rigidity of Fundamental Rights.	Birth of the Basic Structure Doctrine.

While the Court did not provide a fixed list of what constitutes the "Basic Structure," it suggested that elements like Secularism, Federalism, and Judicial Review are essential identities that cannot be stripped away. This doctrine effectively placed the Judiciary as the final gatekeeper of the Constitution's identity. The verdict was so impactful that the government of the day reacted sharply, breaking the long-standing tradition of seniority to appoint a Chief Justice who had sided with the minority in this case. Politics in India since Independence (NCERT), The Crisis of Democratic Order, p.97

Sources: Indian Polity, M. Laxmikanth(7th ed.), Chapter 90: Landmark Judgements and Their Impact, p.626; Indian Polity, M. Laxmikanth(7th ed.), Chapter 12: Basic Structure of the Constitution, p.129; Politics in India since Independence, NCERT (2025 ed.), The Crisis of Democratic Order, p.97

8. Solving the Original PYQ (exam-level)

Throughout your study of the Amending Power of Parliament and Judicial Review, you have seen a persistent "tug-of-war" between the Legislature and the Judiciary. This specific question tests your ability to pinpoint the exact moment this tension culminated in a definitive legal principle. The building blocks you have just mastered—specifically the evolution of Article 368 and the conflict over Fundamental Rights—lead directly to the realization that while Parliament has the power to amend, that power is not absolute. The "Basic Structure Doctrine" is the final safeguard that ensures the essential features and the very identity of the Indian Constitution remain untouchable, as detailed in Indian Polity, M. Laxmikanth.

To arrive at the correct answer, you must trace the chronological shift in the Supreme Court's stance. While earlier cases like Shankari Prasad and Sajjan Singh gave Parliament broad powers, it was the historic 13-judge bench in 1973 that created the definitive "middle path." By ruling in the Kesavananda Bharati case, the Court decided that Parliament can amend any part of the Constitution, including Fundamental Rights, provided it does not alter its Basic Structure. Think of it this way: you can renovate a house (amend), but you cannot remove the foundation that holds it up (basic structure). Therefore, Option (C) is the landmark origin of this doctrine.

UPSC frequently uses the other options as "proximity traps" to test the depth of your conceptual clarity. The Golak Nath case is the most common trap because it also restricted Parliament, but it did so by declaring Fundamental Rights as "transcendental," not by using the specific "Basic Structure" framework. The Maneka Gandhi case redefined personal liberty under Article 21 but is not the source of this doctrine. Similarly, the S R Bommai case is a trap because it applied the doctrine decades later to identify secularism as a basic feature, but it did not enunciate the doctrine itself. Always distinguish between the inception of a rule and its subsequent application.