Jurisprudence, Interpretation and General Laws · Interpretation of Statutes

Operation of Statutes: Commencement, Repeal and Retrospectivity

Updated 11 October 2026 · Fact-checked

Operation of statutes asks when a law starts, whom it governs and what happens when it ends. A statute is presumed prospective unless it says otherwise. It starts on the date stated, or on the President's assent. Repeal ends a law but, under Section 6 of the General Clauses Act, saves accrued rights and pending proceedings.

Understand Operation of Statutes: Commencement, Repeal and Retrospectivity

Every statute has a life cycle: it is passed, it commences, it operates, and it ends by repeal or expiry. Exam questions test each stage. You must know the default rule at each stage and when the law itself can change it.

Commencement. A Central Act can name its own start date. If it names none, Section 5(1) of the General Clauses Act, 1897 says it comes into operation on the day it receives assent. For an Act of Parliament, that is the President's assent. Section 5(3) adds that, unless the contrary is expressed, an Act is treated as coming into operation immediately on the expiration of the day preceding its commencement. So it takes effect from the first moment of the commencement day, which is midnight at the start of that day.

Some Acts are passed but are not to come into force at once. Section 22 lets the power to make rules, bye-laws or orders be used at any time after the Act is passed. But those rules or orders do not take effect until the Act itself commences. This allows the machinery to be ready on the start date.

Prospective and retrospective operation. The general presumption is that a statute operates prospectively, that is, only on events after it commences. A law that changes rights or creates new liabilities for past acts is seen as unfair. So courts will not read an Act as retrospective unless the words say so or the intention is clear. A retrospective law is one that looks backward and affects past transactions. Parliament can make such laws, but there are limits. For example, Article 20(1) of the Constitution bars conviction under a retrospective criminal law. Procedural laws are usually treated as applying to pending cases, since no one has a vested right in procedure. Declaratory and curative statutes can also operate backward.

Repeal. Repeal means a legislature withdraws an Act, expressly or by implication. The risk is that all that was done under the old Act might be wiped out. Section 6 prevents this unless a different intention appears. The repeal does not revive things not in force, does not undo the previous operation of the old law, and does not affect accrued rights, liabilities, penalties, or pending investigations and proceedings. Those may continue as if the repealing Act had not been passed.

Amendment and expiry. Section 6A deals with textual amendments. If an Act that amended another Act is itself repealed, the amendments it made to the other Act's text continue, unless a different intention appears. Expiry is different from repeal. A temporary Act ends by its own terms when its time runs out. No repealing law is needed. Section 6 is framed for repeal, so whether past liabilities survive expiry depends on the wording and intention of the temporary Act.

Key rules to remember

Commencement without a stated date: No date stated → operates from the day of assent (President's assent for an Act of Parliament) [Section 5(1)]; If the Act names a date, that date governs. The default applies only when none is expressed.
Moment of commencement: Operates immediately on the expiration of the day preceding commencement [Section 5(3)]; Applies unless the contrary is expressed. In effect, the Act is in force for the whole of the commencement day.
Rules before commencement: Rule-making power exercisable after passing; rules take effect only on commencement [Section 22]; Covers rules, bye-laws and orders, including those about courts, officers, fees and procedure under the Act.
Effect of repeal: Unless a different intention appears, repeal does not (a) revive what was not in force, (b) affect previous operation or things duly done, (c) affect accrued rights, privileges, obligations, liabilities, (d) affect penalties, forfeitures, punishments for offences, (e) affect investigations, proceedings or remedies [Section 6]; Proceedings may be started, continued or enforced as if the repealing Act had not been passed.
Repeal of an amending Act: Repeal of an Act that textually amended another Act does not undo the amendment already in operation, unless a different intention appears [Section 6A]; Covers amendment by express omission, insertion or substitution.
Default presumption: Statute is prospective unless expressly or by necessary implication retrospective; This is a rule of interpretation, not a section of the Act. Procedural laws are generally applied to pending matters.

How to solve Operation of Statutes: Commencement, Repeal and Retrospectivity questions

Use this order for any question on commencement, repeal or retrospective effect. It keeps your answer in the ICSI style of provision, analysis and conclusion.

1Identify what is asked: start date, backward effect, effect of repeal, or expiry.
2Check the facts for any express date or any clause that states a different intention. This overrides the default rules.
3For commencement, apply Section 5: stated date first, otherwise assent. Then apply Section 5(3) for the time of operation.
4For retrospectivity, state the presumption of prospective operation. Then test: is the law substantive or procedural, does it take away vested rights, is it criminal, is it declaratory or curative?
5For repeal, list the Section 6 protections that match the facts: accrued right, liability, penalty or pending proceeding. Note the words 'unless a different intention appears'.
6If an amending Act was repealed, apply Section 6A. If the law was temporary, say it expired by its own terms and look for a saving clause.
7Write a clear conclusion that applies the rule to the facts in one or two sentences.

Quickest way: Date, Direction, Damage test

When to use it: Use this when you have about five minutes for a short-answer or case-based question and need a structured answer fast.

Date: when did the law start? Express date, else assent (Section 5).
Direction: does it look forward or back? Presume forward unless the words say otherwise.
Damage: if repealed, what survives? Name the right, liability, penalty or proceeding saved by Section 6.
Exception: add 'unless a different intention appears' and check the facts for it.
Close with one line of conclusion tied to the facts.

Common mistakes in Operation of Statutes: Commencement, Repeal and Retrospectivity

Saying an Act always starts on the date of publication in the Gazette.
Students mix up publication with assent or with a notified commencement date.
Fix: State the order: stated date first, otherwise the day of assent under Section 5(1). Treat publication as a separate point.
Writing that repeal wipes out all rights and cases under the old law.
Students take 'repeal' to mean the law never existed.
Fix: Quote the Section 6 protections. Accrued rights, liabilities, penalties and pending proceedings survive unless a different intention appears.
Treating repeal and expiry as the same thing.
Both end the life of a statute, so they look alike.
Fix: Repeal is a legislative act by another law. Expiry is automatic when a temporary Act's period ends. Section 6 is worded for repeal, so for expiry check the Act's own words and any saving clause.
Saying rules made under an Act before it commences are in force at once.
Students read Section 22 as only allowing rule-making and forget the limit.
Fix: Say the power may be used after passing, but the rules take effect only when the Act commences.
Claiming every retrospective law is invalid.
Students over-learn the presumption against retrospectivity.
Fix: Say Parliament may legislate retrospectively. The presumption is only a rule of reading. The main constitutional bar is Article 20(1) for criminal law.
Forgetting Section 6A when an amending Act is repealed.
It is a short section and is overshadowed by Section 6.
Fix: Link it to textual amendments: omission, insertion or substitution made by the repealed Act continue in operation unless a different intention appears.

Worked examples

Example 1

The Parliament passes the Xyz Act, which receives the President's assent on 10 March. The Act does not name a date of commencement. It empowers the Central Government to make rules on the fees payable under it. The Government makes the rules on 15 March. (a) From which day does the Act operate? (b) When do the rules take effect?

Show the solution

Provision: Section 5(1) of the General Clauses Act, 1897 says an Act not expressed to come into operation on a particular day comes into operation on the day it receives assent. For an Act of Parliament, that is the President's assent.
Analysis of (a): No date is stated, so the Act commences on 10 March. Under Section 5(3), unless the contrary is expressed, it is treated as operating immediately on the expiration of the day preceding, that is, from the start of 10 March.
Analysis of (b): Section 22 allows the rule-making power to be used at any time after passing. Here that applies only if the Act is not to come into force immediately. In this case the Act commenced on assent, so the Government was entitled to make rules on 15 March and they take effect from the date made, as the Act is already in force.
Note: If the Act had been fixed to commence on a later date, the rules made on 15 March would still be valid, but they would take effect only on that later commencement under Section 22.

Answer: The Act operates from 10 March, the day of assent, from the first moment of that day. The rules made on 15 March are valid and take effect immediately, as the Act is already in force. Had the Act commenced later, the rules would take effect only from that commencement.

Example 2

Ravi committed an offence under an Act which was repealed on 1 April by a new Act. The repealing Act has no saving clause. Proceedings against Ravi have not yet begun. Can he be prosecuted under the repealed Act?

Show the solution

Provision: Section 6 of the General Clauses Act, 1897 applies where a Central Act repeals an enactment, unless a different intention appears.
Under Section 6(d), repeal does not affect any penalty, forfeiture or punishment incurred for an offence committed against the repealed enactment.
Under Section 6(e), repeal does not affect any investigation, legal proceeding or remedy for such a penalty or punishment. These may be instituted, continued or enforced as if the repealing Act had not been passed.
Analysis: The absence of a saving clause does not matter, because Section 6 itself supplies the saving. The only exception is a different intention in the repealing Act. The facts show none.
Note: The result must also be consistent with Article 20(1) of the Constitution, which prevents a penalty greater than that in force at the time of the offence.

Answer: Yes. Under Section 6(d) and (e), repeal does not affect the penalty for an offence already committed, and proceedings may be instituted as if the repealing Act had not been passed. Ravi can be prosecuted under the repealed Act, as no contrary intention appears.

Exam tips

Quote the section number with the rule: Section 5 for commencement, Section 6 for repeal, Section 6A for amending Acts, Section 22 for pre-commencement rules.
Always write the phrase 'unless a different intention appears'. Examiners look for it in repeal answers.
In a repeal versus expiry question, give a clear contrast in two or three points, then add that saving depends on the Act's wording.
For case-based questions, follow the ICSI pattern: provision, application to the facts, then a one-line conclusion.
Do not cite old laws as current. If you mention criminal law, use the Bharatiya Nyaya Sanhita and Bharatiya Nagarik Suraksha Sanhita, not the IPC or CrPC.

Practice questions from Interpretation of Statutes

Operation of Statutes: Commencement, Repeal and Retrospectivity: frequently asked questions

What is the difference between repeal and expiry of a statute?

Repeal is the withdrawal of a law by the legislature, through a repealing Act or an implied conflict with a later law. Expiry happens automatically when a temporary Act's stated period ends. Section 6 of the General Clauses Act protects accrued rights and proceedings on repeal. On expiry, the answer depends on the Act's own wording and any saving clause.

Are statutes retrospective or prospective by default?

They are presumed prospective. Courts do not read an Act as taking away rights or adding liabilities for past events unless the words clearly say so. Procedural laws are generally applied to pending cases, and declaratory or curative laws may operate backward.

When does an Act come into force if no date is mentioned?

Under Section 5(1) of the General Clauses Act, 1897, it comes into operation on the day it receives assent. For an Act of Parliament, that is the President's assent. Section 5(3) treats it as operating from the expiration of the preceding day, unless the contrary is expressed.

Does repeal of an Act cancel pending cases under it?

Not by default. Section 6 says that, unless a different intention appears, repeal does not affect any investigation, legal proceeding or remedy for rights, liabilities, penalties or punishments already incurred. These may be continued as if the repealing Act had not been passed.