Landmark Cases — Constitutional Doctrines and Their Evolution

Constitutional law in India is, in a quite literal sense, the law of its landmark cases. The bare text of the Constitution has changed remarkably little since 1950 — but the meaning of Article 13, Article 14, Article 21, Article 32, Article 356 and Article 368 has been redrawn, narrowed and enlarged in successive Constitution Bench judgments. The Supreme Court has invented doctrines that do not appear in the document at all — basic structure, due process under Article 21, the right to privacy, the prima facie test for President's Rule. To read the Constitution today is to read the gloss the Court has placed on it across seventy-five years.

This chapter assembles the eighteen rulings every judiciary, CLAT PG and SEBI candidate is expected to know cold. They are grouped not chronologically but doctrinally — amending power, judicial review, federalism, fundamental-rights expansion, equality and reservation, free speech, Article 21, and emergency review. For each case, the entry records the Bench strength, the year, the precise doctrinal contribution, and what the case did to the law that came after it. The cases are doors into the larger Constitution of India chapters; pursue a doctrine in depth by following the in-prose links to its home chapter.

I. Amending power and the basic structure

The longest-running constitutional argument in India has been about the limits of Article 368. Can Parliament, using the amending procedure, take away the very rights the Constitution promises? Five Constitution Bench rulings, decided across two decades, answered that question in opposite directions before settling on the basic-structure compromise that holds today. The story begins in 1951 and reaches its current resting point in 1980, with a postscript in 2007.

Sankari Prasad v. Union of India (1951)

The first attempt to fix limits on the amending power. A five-judge Constitution Bench unanimously held that Parliament's power under Article 368 extends to every Article of the Constitution, including the Fundamental Rights in Part III. A constitutional amendment, the Court reasoned, is an exercise of constituent power and is not 'law' within the meaning of Article 13(2); the limitation in Article 13 binds ordinary legislation, not the amending process. The First Amendment, which inserted Articles 31A and 31B and the Ninth Schedule to insulate land-reform laws from challenge, was upheld. The reasoning would govern the field for sixteen years.

Sajjan Singh v. State of Rajasthan (1965)

Reported as Sajjan Singh v. State of Rajasthan, AIR 1965 SC 845. A Constitution Bench, by majority, reaffirmed the holding in Sankari Prasad — that Fundamental Rights are amendable under Article 368. But two of the judges, Hidayatullah and Mudholkar JJ., recorded careful doubts. Mudholkar J. asked whether the Constitution had certain 'basic features' that could not be touched by the ordinary amending process — the first stirrings of the doctrine that would eventually displace the Sankari Prasad position. The seed planted here would germinate in Golak Nath and flower in Kesavananda Bharati.

Golak Nath v. State of Punjab (1967)

Reported as Golak Nath v. State of Punjab, AIR 1967 SC 1643. An eleven-judge Bench, by 6:5, overruled Sankari Prasad and Sajjan Singh. The majority held that a Constitution Amendment Act passed under Article 368 was 'law' within the meaning of Article 13(2); Parliament therefore could not amend Part III to take away or abridge the Fundamental Rights. The decision, however, was prospective — past amendments stood. Golak Nath provoked the Twenty-fourth Amendment (1971), which inserted Article 13(4) and Article 368(1) to declare in terms that a constitutional amendment is not 'law' for Article 13 and that Parliament has the power to amend any provision. The stage was set for the largest constitutional case in Indian history. To follow how the architecture of Part III Fundamental Rights evolved, see the dedicated chapter.

Kesavananda Bharati v. State of Kerala (1973)

Reported as Kesavananda Bharati v. State of Kerala, AIR 1973 SC 1461 : (1973) 4 SCC 225. The largest Bench ever assembled by the Supreme Court — thirteen judges — sat for sixty-eight working days. By the narrowest possible majority of 7:6, the Court delivered the doctrine that defines Indian constitutionalism: Parliament has plenary power to amend any provision of the Constitution, including the Fundamental Rights, but this power does not extend to altering the 'basic structure or basic features' of the Constitution. Golak Nath was overruled. The Twenty-fourth Amendment was upheld. But the seemingly absolute amending power restored by that amendment was at once cabined by an implied limitation conjured out of the Preamble, the scheme of Part III, and the constitutional commitment to a republic. The judgment of Khanna J. broke the tie. Kesavananda is the most cited Indian decision; the doctrine of basic structure is the master key of every later challenge to a constitutional amendment.

Indira Nehru Gandhi v. Raj Narain (1975)

Reported as Indira Nehru Gandhi v. Raj Narain, AIR 1975 SC 2299. The first application of the basic-structure doctrine after Kesavananda. The Thirty-ninth Amendment had inserted Article 329A(4), which placed the election of the Prime Minister beyond the reach of any court. A five-judge Bench struck down clause (4) on the ground that free and fair elections, the rule of law, and judicial review form part of the basic structure. The Court treated the doctrine as live and working, not as a one-time observation in Kesavananda; the basic structure had now invalidated a real constitutional amendment.

Minerva Mills v. Union of India (1980)

Reported as Minerva Mills v. Union of India, AIR 1980 SC 1789 : (1980) 3 SCC 625. The Forty-second Amendment (1976) had inserted clauses (4) and (5) into Article 368, declaring that there are no limitations whatever on the amending power and that no constitutional amendment is open to judicial review on any ground. A five-judge Bench, by 4:1, struck down both clauses. Limited amending power and judicial review, the Court held, are themselves basic features of the Constitution; they cannot be excluded by an exercise of the very power they limit. Minerva Mills also balanced Part III and Part IV, holding that harmony between the Fundamental Rights and the Directive Principles of State Policy is itself a basic feature. After Minerva Mills, the doctrine has been treated as settled.

I.R. Coelho v. State of Tamil Nadu (2007)

Reported as I.R. Coelho v. State of T.N., (2007) 2 SCC 1 : AIR 2007 SC 861. A nine-judge Bench applied the basic-structure test to the Ninth Schedule itself. All laws inserted into the Ninth Schedule on or after 24 April 1973 — the date of Kesavananda — are open to challenge on the ground that they damage the basic structure of the Constitution. The blanket immunity that Article 31B had previously appeared to confer was therefore conditional. Coelho is the bridge between the amending-power cases and the modern administrative-law challenges to schedule-protected legislation; every law in the Ninth Schedule today is read subject to the basic-structure overlay.

II. Judicial review and tribunal jurisdiction

If basic structure is what the amending power may not touch, judicial review is the engine that makes the limit real. Two cases shaped the modern law of judicial review — the first by holding it to be a basic feature of the Constitution, the second by working out what that means for tribunals to whose jurisdiction the High Courts had been ousted.

L. Chandra Kumar v. Union of India (1997)

Reported as L. Chandra Kumar v. Union of India, (1997) 3 SCC 261. A seven-judge Bench held that the jurisdiction of the High Courts under Articles 226 and 227, and of the Supreme Court under Article 32, forms part of the basic structure of the Constitution and cannot be totally excluded. The 'exclusion-of-jurisdiction' clauses in Article 323A(2)(d) and Article 323B(3)(d), and parallel ouster clauses in tribunal-creating legislation, were held unconstitutional to that extent. Tribunals constituted under Articles 323A and 323B can perform a supplementary role, but their orders are subject to writ scrutiny by a Division Bench of the High Court within whose territorial jurisdiction the tribunal falls. The case made Article 32 and the High Court's writ jurisdiction structurally protected.

III. Federalism and the misuse of Article 356

For four decades after independence, Article 356 — the President's power to dismiss a State government on the report of the Governor — was treated as a political question outside the Court's reach. State of Rajasthan v. Union of India (1977) had hinted that judicial review might lie in narrow grounds, but the principle was unsettled. Bommai changed everything.

S.R. Bommai v. Union of India (1994)

Reported as S.R. Bommai v. Union of India, (1994) 3 SCC 1 : AIR 1994 SC 1918. A nine-judge Bench worked out the constitutional discipline of President's Rule under Article 356. The principal holdings have governed centre-State relations ever since: (i) a Proclamation under Article 356 is judicially reviewable on the grounds of mala fides, irrelevant material, no material at all, or extraneous purpose; (ii) the floor of the Assembly, not the Governor's subjective satisfaction, is the proper place to test a State Ministry's majority; (iii) the Assembly cannot be irreversibly dissolved before both Houses of Parliament approve the Proclamation; (iv) federalism and secularism are part of the basic structure; (v) Article 74(2) is no bar to producing the material on which the President was satisfied. Bommai is the key authority for every chapter on Centre-State administrative relations and the State Executive.

IV. Article 21, due process and the silos collapse

The transformation of Article 21 from a guarantee against executive lawlessness into the chief vehicle of substantive rights is the most striking single development in Indian constitutional law. The change is captured by the contrast between A.K. Gopalan in 1950 and Maneka Gandhi in 1978 — two cases on the same words, decided in opposite directions.

A.K. Gopalan v. State of Madras (1950)

Reported as A.K. Gopalan v. State of Madras, 1950 SCR 88 : AIR 1950 SC 27. A six-judge Bench, by 5:1, gave Article 21 its narrow original reading. 'Personal liberty' meant freedom from physical restraint by incarceration or otherwise. 'Procedure established by law' meant procedure prescribed by enacted law — no implied requirement that the procedure be just, fair or reasonable. Articles 19, 21 and 22 were treated as separate, mutually exclusive silos: a law that took away personal liberty under Article 21 could not also be tested under Article 19 or Article 14. The view was orthodox and would dominate Article 21 jurisprudence for almost three decades. To trace the doctrine's shift, see the chapter on Article 21 and personal liberty.

R.C. Cooper v. Union of India (1970)

Reported as R.C. Cooper v. Union of India, (1970) 1 SCC 248 : AIR 1970 SC 564. The bank-nationalisation case. An eleven-judge Bench overruled the Gopalan view that the fundamental rights are mutually exclusive. A law that takes away one right, the Court held, must satisfy the tests of every right it touches. The 'direct and inevitable effect' of a law on a fundamental right is what matters, not its formal subject. Cooper laid the doctrinal groundwork that Maneka Gandhi would deploy eight years later, and remains the foundational authority for the proposition that the constitutionality of a statute is judged by its substance and operation, not by its form or stated object.

Kharak Singh v. State of Uttar Pradesh (1963)

Reported as Kharak Singh v. State of U.P., AIR 1963 SC 1295. A six-judge Bench struck down police regulations that authorised domiciliary night visits as violative of Article 21, reading 'personal liberty' as wider than mere freedom from physical restraint. The decision is the first sustained engagement with the right to privacy in Indian constitutional law. Subba Rao J., in dissent, would have gone further and held privacy to be a constitutionally protected right in itself. The majority's hesitation on that point was carried forward for half a century before being expressly overruled by the nine-judge Bench in Puttaswamy in 2017. Kharak Singh, taken with Gopalan and the line that follows, is the standard exam tracer for the question 'how did personal liberty under Article 21 expand?'.

Maneka Gandhi v. Union of India (1978)

Reported as Maneka Gandhi v. Union of India, AIR 1978 SC 597 : (1978) 1 SCC 248. A seven-judge Bench worked the Cooper logic into Article 21 itself. The Court held that the procedure prescribed by law for depriving a person of life or personal liberty must be 'reasonable, fair and just' — not arbitrary, oppressive or fanciful. Articles 14, 19 and 21 are no longer mutually exclusive; the validity of any law touching personal liberty must be tested on the anvil of all three. The case effectively imported procedural and substantive due process into Article 21, even though the Constituent Assembly had deliberately excluded the phrase. Maneka Gandhi is the foundation of every later expansion of Article 21 — to livelihood, dignity, speedy trial, education, privacy and clean environment.

Olga Tellis v. Bombay Municipal Corporation (1985)

Reported as Olga Tellis v. Bombay Municipal Corpn., AIR 1986 SC 180 : (1985) 3 SCC 545. A Constitution Bench held that the right to livelihood is included in the right to life under Article 21; the eviction of pavement dwellers without notice and an opportunity to be heard violated that right. The case is also the leading authority on the proposition that fundamental rights cannot be waived — there can be no estoppel against the Constitution, and a person cannot, by any act of his, surrender the protections that Part III confers. Olga Tellis is one of the earliest applications of the Maneka Gandhi 'reasonable, fair and just' test to a real fact-pattern of administrative action.

Bandhua Mukti Morcha v. Union of India (1984)

Reported as Bandhua Mukti Morcha v. Union of India, AIR 1984 SC 802. The bonded-labour case. The Court held that Article 21 includes the right to live with human dignity and to be free from exploitation, and read it together with Articles 39(e), (f), 41 and 42 of the Directive Principles to enforce labour and welfare legislation. The decision is one of the formative public-interest litigation rulings: relaxed standing, letter petitions treated as writs, fact-finding commissions set up by the Court, and continuing mandamus to monitor compliance. Bandhua Mukti Morcha sits at the intersection of Article 21 and the right against exploitation in Articles 23 and 24.

Justice K.S. Puttaswamy v. Union of India (2017)

Reported as Justice K.S. Puttaswamy v. Union of India, W.P. (C) No. 494 of 2012. A nine-judge Bench unanimously held that the right to privacy is protected as an intrinsic part of the right to life and personal liberty under Article 21 and as part of the freedoms guaranteed by Part III. The decisions in M.P. Sharma (1954) and Kharak Singh (1963) — to the extent that they had said there is no fundamental right to privacy — were overruled. The Court treated privacy not as a single right but as a cluster of interests covering bodily integrity, informational autonomy, decisional privacy and dignity. Puttaswamy is the doctrinal pivot for almost every modern Article 21 challenge — Aadhaar, decriminalisation of consensual same-sex relations, the Section 377 review, decriminalisation of adultery, and digital-rights litigation. The Constitution, the Court held, is not the sole repository of these natural-law rights; they exist anterior to the document.

V. Equality, reservation and the 50% ceiling

The reservation jurisprudence of the Supreme Court is dominated by a single nine-judge Bench decision that fixed the architecture, the limits and the exclusions for affirmative-action policy under Articles 15(4) and 16(4).

Indra Sawhney v. Union of India (1992)

Reported as Indra Sawhney v. Union of India, AIR 1993 SC 477 : 1992 Supp (3) SCC 217. A nine-judge Bench delivered six separate opinions but a coherent majority. The principal holdings: (i) reservation under Article 16(4) for 'backward classes' is permissible, but the total reservation in any given year cannot exceed 50% — that is the constitutional ceiling carved out of the equality guarantee in Article 16(1); (ii) the 'creamy layer' among the backward classes must be excluded from the benefit, lest the reservation reach those who are no longer socially or educationally disadvantaged; (iii) reservation in promotions is impermissible (a position subsequently altered by the Seventy-seventh Amendment for SCs/STs); (iv) reservation cannot be extended to certain specialised posts where merit alone counts. The case is the gateway to every later development on Right to Equality and on special provisions for SC, ST and OBC.

VI. Free speech and the freedom of the Press

Romesh Thappar v. State of Madras (1950)

Reported as Romesh Thappar v. State of Madras, 1950 SCR 594 : AIR 1950 SC 124. One of the earliest Article 19(1)(a) decisions and the foundational free-speech precedent. A six-judge Bench struck down section 9(1-A) of the Madras Maintenance of Public Order Act, which empowered the State Government to ban entry and circulation of journals on grounds of public safety. Three propositions emerged: (i) freedom of speech includes freedom of circulation — to deprive a publication of its readers is to deprive it of its speech; (ii) restrictions on speech under Article 19(2) must rest squarely on one of the enumerated grounds — 'public order' was added only by the First Amendment in 1951, and 'public safety' or local breaches do not by themselves satisfy 'security of the State'; (iii) an application under Article 32 lies in the first instance to the Supreme Court without first resorting to the High Court. Romesh Thappar set the template for every later challenge under Article 19(1)(a).

Vishaka v. State of Rajasthan (1997)

Reported as Vishaka v. State of Rajasthan, (1997) 6 SCC 241 : AIR 1997 SC 3011. A three-judge Bench, in the absence of any statute, laid down binding guidelines on the prevention and redressal of sexual harassment of women at the workplace. The Court read Articles 14, 19(1)(g) and 21 together to recognise the right of working women to a safe environment and a corresponding duty on employers; international conventions, in particular CEDAW, were used as interpretive aid. The Vishaka guidelines operated as positive law until the Sexual Harassment of Women at Workplace (Prevention, Prohibition and Redressal) Act, 2013 came into force. The case is a foundational precedent for the use of Article 32 to fill a legislative vacuum and is also significant for the proposition that gender equality includes the right to work with dignity, which is a universally recognised basic human right against which domestic constitutional guarantees must be read.

For the exam-aspirant, two further nuances are worth recording. First, Vishaka illustrates the doctrine that the Supreme Court, exercising its writ jurisdiction under Article 32, can issue not just one-time directions but standing guidelines that operate until the Legislature steps in. Second, the case signalled a willingness to use international human-rights norms as interpretive aid in Article 21 cases — a posture continued in Puttaswamy and several environmental and women's-rights decisions.

VII. Emergency, habeas corpus and ADM Jabalpur

ADM Jabalpur (1976)

Reported as ADM Jabalpur, AIR 1976 SC 1207 : (1976) 2 SCC 521. The most criticised judgment in the Supreme Court's history. During the Emergency declared in 1975, the President had suspended the enforcement of Article 21 by an Order under Article 359(1). A five-judge Bench, by 4:1, held that the consequence of the suspension was that no person had locus standi to move a writ of habeas corpus — even one alleging detention without authority of law, or in excess of statutory power, or vitiated by mala fides. Article 21, the majority reasoned, was the sole repository of the right to life and personal liberty; once its enforcement was suspended, the right itself was unenforceable. Khanna J., in a celebrated dissent, held that Article 21 is not the sole source of the right to life, that the right pre-dates the Constitution, and that the suspension of an Article does not authorise lawless executive action. The dissent cost Khanna J. his Chief Justiceship; it has since been vindicated. The decision led directly to the Forty-fourth Amendment, which now prevents Articles 20 and 21 from being suspended even during an Emergency, and was finally and expressly overruled by the nine-judge Bench in Puttaswamy (2017). The case is essential reading for the chapter on Emergency provisions and on writs.

How to use these cases in the exam

For the judiciary mains paper, every one of these decisions is fair game in a single-line proposition question, a doctrinal short note, or a comparative essay. The pattern that scores well is to (i) identify the Bench strength and year, (ii) state the precise holding in a single sentence, (iii) place the case in the doctrinal sequence — what it overruled, what it qualified, what it laid the foundation for. Candidates lose marks by treating these cases as isolated nuggets; the examiner is testing whether the candidate sees the conversation between Sankari Prasad, Golak Nath, Kesavananda, Indira Nehru Gandhi and Minerva Mills as one continuous argument, and the conversation between Gopalan, Cooper, Maneka Gandhi, Olga Tellis and Puttaswamy as another.

For the prelims and the CLAT PG MCQs, the trap usually lies in the Bench strength (Kesavananda is 13, not 11; Indra Sawhney is 9, not 7; Puttaswamy is 9, not 7), the year (Maneka Gandhi is 1978; Olga Tellis is 1985), or the precise overruling (Coelho did not overrule Kesavananda — it extended it; Puttaswamy overruled the M.P. Sharma and Kharak Singh observations on privacy, not the cases as such). The cleanest preparation is to keep a one-page table of bench, year, citation and one-line holding for each case, and to revisit the chapter on the amendment of the Constitution for the surrounding architecture of Article 368.

A second pattern worth internalising is that almost every great Indian constitutional case is a corrective of an earlier one. Sankari Prasad was overruled by Golak Nath; Golak Nath was overruled by Kesavananda. Gopalan was hollowed out by Cooper and overruled in substance by Maneka Gandhi. ADM Jabalpur was repudiated by the Forty-fourth Amendment and expressly buried in Puttaswamy. The State of Rajasthan reading of Article 356 was reversed by Bommai. Reading the eighteen cases as a single conversation rather than a list of holdings is the move that turns memorisation into understanding — and almost every long-form judiciary mains question rewards exactly that move.

The eighteen rulings collected here are not the whole of Indian constitutional law, but they are its skeleton. Every other case fills out flesh on a bone these cases laid down. The doctrines they have invented — basic structure, the reasonable-fair-just procedure, the prima facie test for President's Rule, the 50% reservation ceiling, the privacy quartet of bodily integrity, informational autonomy, decisional privacy and dignity — together describe a Constitution that is, in practice, the joint creation of the founding text and the Supreme Court's reading of it across seventy-five years.

Frequently asked questions

What was the bench strength in Kesavananda Bharati and why does it matter?

Kesavananda Bharati was decided by a thirteen-judge Bench — the largest ever assembled by the Supreme Court of India. The size matters for two reasons. First, the basic-structure doctrine was carried by a 7:6 majority, with Khanna J.'s opinion breaking the tie; a smaller Bench could not have overruled the eleven-judge ruling in Golak Nath. Second, only an equally large or larger Bench can now reconsider the doctrine, which is why every later challenge has been confined to applying basic structure rather than questioning it.

How did Maneka Gandhi change the law laid down in A.K. Gopalan?

A.K. Gopalan (1950) had treated Articles 19, 21 and 22 as mutually exclusive silos and had read 'procedure established by law' to mean any procedure prescribed by enacted law, however arbitrary. Maneka Gandhi (1978), building on R.C. Cooper (1970), held that the three Articles overlap and that the procedure under Article 21 must be 'reasonable, fair and just'. The decision effectively imported due process into Article 21 and is the foundation of every later expansion — to livelihood, dignity, speedy trial, education, privacy and a clean environment.

Is the 50% ceiling on reservations from Indra Sawhney absolute?

The nine-judge Bench in Indra Sawhney v. Union of India (1992) held that total reservation in any given year cannot exceed 50% — described as the rule, with departures permissible only in extraordinary situations and on solid factual material. The ceiling has been repeatedly reaffirmed but is not a per-se prohibition; the Court has allowed limited carry-forward of unfilled vacancies, and certain special State enactments have been litigated against the ceiling. The 'creamy layer' exclusion announced in the same case applies to OBC reservation and was extended later to SC/ST promotions.

What did S.R. Bommai actually hold about Article 356?

Bommai (1994) made a Proclamation under Article 356 judicially reviewable on the grounds of mala fides, no material, irrelevant material or extraneous purpose. The floor of the Assembly — not the Governor's subjective view — is the proper place to test majority. The Assembly cannot be irreversibly dissolved before both Houses of Parliament approve the Proclamation. Article 74(2) does not bar production of the material on which the President was satisfied. Federalism and secularism were declared part of the basic structure. Bommai is the principal authority on the discipline of President's Rule today.

Has ADM Jabalpur been overruled?

Yes. Two distinct events have erased the precedential value of ADM Jabalpur (1976). First, the Forty-fourth Amendment (1978) rewrote Article 359(1) to provide that the enforcement of Articles 20 and 21 cannot be suspended even during an Emergency, removing the constitutional foundation of the majority's reasoning. Second, the nine-judge Bench in Puttaswamy v. Union of India (2017) expressly overruled ADM Jabalpur on the merits, vindicating Khanna J.'s dissent that Article 21 is not the sole source of the right to life and that the right pre-dates the Constitution.

What is the difference between Kesavananda Bharati and I.R. Coelho?

Kesavananda Bharati (1973) held that Parliament cannot, by an amendment under Article 368, alter the basic structure of the Constitution. I.R. Coelho v. State of Tamil Nadu (2007) extended that test to the Ninth Schedule itself: every law inserted into the Ninth Schedule on or after 24 April 1973 — the date of Kesavananda — is open to challenge on the ground that it damages the basic structure. The blanket immunity that Article 31B had appeared to confer is therefore conditional. Coelho did not overrule Kesavananda; it is its logical extension to schedule-protected legislation.