Important Doctrines About Constitutional Amendments and Parliamentary Power

1. Doctrine of Basic Structure

Parliament holds enormous power under Article 368 to amend the Constitution. That power have limits?

Yes. The Supreme Court in Kesavananda Bharati v. State of Kerala (1973) drew the line. The court held that Parliament cannot alter the basic features of the Constitution — things like judicial review, the rule of law, separation of powers, federalism, and fundamental rights.

• Parliament can amend any provision of the Constitution
• Parliament cannot destroy its essential identity
• No amendment can demolish the foundation on which the Constitution stands

This is the most important doctrine in Indian constitutional law.

2. Doctrine of Constitutional Identity

This doctrine connects directly to the Basic Structure ruling. Minerva Mills v. Union of India (1980) took it further and held that amendments cannot destroy the essential identity of the Constitution itself.

Think of it this way — you can renovate a house, add floors, change rooms. But you cannot demolish its foundation and call it the same building.

3. Doctrine of Prospective Overruling

Courts normally apply new rulings to past transactions as well. The Doctrine of Prospective Overruling changes that. A court can declare that its new legal rule applies only going forward — not to things that already happened under the old rule.

I.C. Golak Nath v. State of Punjab (1967) introduced this doctrine in India. The court used it to avoid the chaos that retroactively applying a new constitutional interpretation to thousands of completed transactions would create.

Doctrines on Legislative Competence

These doctrines answer one recurring question in Indian federalism: who has the power to make which law?

4. Doctrine of Pith and Substance

When courts question a state or federal law for exceeding the authority of the legislature, they examine the actual essence and nature of the law — rather than merely its designation or name.

Prafulla Kumar Mukherjee v. Bank of Commerce (1947): Even if a law incidentally touches a subject in another list, it stays valid if its essential substance falls within the legislature’s permitted field.

• A state law on money lending may incidentally deal with banking
• The court asks: what is the law really about?
• If the core subject sits within the permissible list — the law stands

5. Doctrine of Colourable Legislation

This doctrine checks dishonest legislative drafting. If a legislature lacks power to enact a law directly, it cannot achieve the same result by disguising it as something else.

K.C. Gajapati Narayan Deo v. State of Orissa (1953) established the principle: what cannot be done directly cannot be done indirectly. Courts look through the form of a law to its actual substance and effect.

6. Doctrine of Territorial Nexus

State laws normally operate within state boundaries. But a state can legislate on matters outside its territory — if a sufficient territorial connection exists between the state and the subject matter of the law.

State of Bombay v. R.M.D. Chamarbaugwalla (1957) confirmed that a real and substantial nexus between the state and the activity or person being regulated justifies the state’s legislative reach beyond its borders.

7. Doctrine of Incidental or Ancillary Powers

No legislative list can spell out every possible power in exhaustive detail. The Doctrine of Incidental Powers fills that gap — the power to legislate on a subject also includes the power to do everything reasonably necessary to make that legislation effective.

8. Doctrine of Occupied Field

Where the Union legislates on a subject and occupies the legislative field, the state cannot enter that field — even if the state legislation does not directly conflict with the Union law.

State of Orissa v. M.A. Tulloch & Co. (1964) established that occupation of the field, not just direct repugnancy, restricts state legislative power.

9. Doctrine of Repugnancy

Article 254 handles conflict between central and state laws on Concurrent List subjects. The Doctrine of Repugnancy identifies when such conflict exists and resolves it — central law prevails, unless the state law received Presidential assent.

M. Karunanidhi v. Union of India (1979) laid down the tests courts apply to determine when repugnancy between central and state laws actually exists.

Doctrines on Fundamental Rights

10. Doctrine of Judicial Review

Courts hold the power to examine whether laws and executive actions conform to the Constitution. Any law or action that violates the Constitution gets struck down.

L. Chandra Kumar v. Union of India (1997) confirmed that judicial review forms part of the basic structure of the Constitution — Parliament cannot take it away even through a constitutional amendment.

11. Doctrine of Severability

When part of a statute is unconstitutional and part is valid, must the court strike down the entire law?

Not necessarily. The Doctrine of Severability allows the court to remove the unconstitutional part and preserve the rest — provided the two parts are sufficiently independent.

R.M.D. Chamarbaugwalla v. Union of India (1957): The test is whether Parliament would have enacted the valid part alone, without the part being struck down.

12. Doctrine of Eclipse

What happens to a pre-constitutional law that conflicts with Fundamental Rights?

The Doctrine of Eclipse says it does not die — it becomes dormant. The law exists but stays unenforceable against citizens. If the Fundamental Right it conflicts with is later amended or removed, the dormant law revives automatically.

Bhikaji Narain Dhakras v. State of M.P. (1955) established this doctrine. The law stays under an eclipse — obscured, not destroyed.

13. Doctrine of Waiver

Can a person voluntarily give up their Fundamental Rights?

Generally, no. Basheshar Nath v. CIT (1959) held that Fundamental Rights exist not just for individual benefit but for public interest. A citizen cannot waive a Fundamental Right the way they waive a contractual right.

14. Doctrine of Non-Arbitrariness

Article 14 guarantees equality before law. The Doctrine of Non-Arbitrariness expands this — arbitrariness itself amounts to inequality.

E.P. Royappa v. State of Tamil Nadu (1974) introduced this idea. Any state action that is arbitrary, capricious, or without rational basis violates Article 14 — even if it does not discriminate between two identifiable groups.

15. Doctrine of Proportionality

When the state restricts a Fundamental Right, the restriction must not be excessive. Courts ask whether the restriction is suitable, necessary, and proportionate to the goal the state wants to achieve.

Modern Dental College v. State of M.P. (2016) brought proportionality into mainstream Indian constitutional review. The core question: is this the least restrictive way to achieve the state’s legitimate objective?

16. Doctrine of Constitutional Morality

Courts interpret the Constitution to protect values like liberty, equality, and human dignity — even when popular sentiment runs the other way. Constitutional morality prevails over social morality.

Navtej Singh Johar v. Union of India (2018), which decriminalised consensual same-sex relationships between adults, is the clearest modern application. The court held that constitutional values protect minorities against majoritarian impulses.

Doctrines on Administrative and Executive Action

17. Doctrine of Natural Justice

No person should face an adverse decision without an opportunity to be heard. No decision-maker should sit in judgment over their own cause.

Maneka Gandhi v. Union of India (1978) gave natural justice its constitutional grounding — connecting it directly to Article 21 and holding that any procedure affecting life or liberty must be fair, just, and reasonable.

Two core rules govern this doctrine:

• Audi alteram partem — hear the other side before deciding
• Nemo judex in causa sua — no person judges their own cause

18. Doctrine of Legitimate Expectation

When a public authority creates an expectation — through a promise, a consistent practice, or a clear representation — that expectation deserves legal protection. The authority cannot simply walk away from it without good reason and a fair hearing.

Union of India v. Hindustan Development Corporation (1993) recognised legitimate expectation as a ground for judicial review in India.

19. Doctrine of Promissory Estoppel Against the Government

The government cannot always retreat from a promise that another party has relied upon to their detriment — even if no formal contract exists.

Motilal Padampat Sugar Mills v. State of U.P. (1979) established that promissory estoppel can operate against the state — though the government can depart from its promise in genuine public interest with proper justification.

20. Doctrine of Pleasure

Certain public offices — like governors and civil servants — are held at the pleasure of the President or the Governor. The holder can be removed at will.

But Shamsher Singh v. State of Punjab (1974) confirmed that the doctrine of pleasure is not absolute — Article 311 provides constitutional safeguards for civil servants, requiring inquiry before dismissal.

21. Doctrine of Public Trust

The state does not own natural resources like rivers, forests, and coastal land in a proprietary sense. It holds them as trustee for the benefit of the public. The state cannot hand them to private parties in a way that defeats public interest.

M.C. Mehta v. Kamal Nath (1997) brought this doctrine firmly into Indian environmental law. Courts use it regularly to protect public access to natural resources.

Doctrines on Interpretation

22. Doctrine of Harmonious Construction

When two constitutional provisions appear to conflict, courts do not strike down either one. They interpret both in a way that allows each to operate without contradiction.

Re Kerala Education Bill (1958): The court read Articles 29 and 30 — on minority rights and the right to establish educational institutions — together rather than treating one as overriding the other.

23. Doctrine of Reading Down

When a provision has two interpretations — one constitutional and one not — the court adopts the narrower, constitutionally valid reading rather than striking the provision down entirely.

Kedar Nath Singh v. State of Bihar (1962) read down the sedition provision by limiting its scope to acts that actually incite violence or public disorder.

24. Doctrine of Stare Decisis

Courts follow their own earlier decisions. Consistency builds public trust and gives citizens a stable basis for planning their conduct.

Union of India v. Raghubir Singh (1989) explained why this matters — law cannot change with every new bench sitting on the same question. A higher court can depart from its earlier decision, but it must explain why the earlier ruling was wrong.

25. Doctrine of Separation of Powers

Legislative power belongs to Parliament. Executive power belongs to the government. Judicial power belongs to the courts. Each organ must stay within its constitutional role.

Ram Jawaya Kapur v. State of Punjab (1955) explained India’s version — the Indian Constitution does not adopt the strict American-style separation, but it distributes functions between the three organs and prevents any one from encroaching on the core domain of another.