Res judicata bars the same matter from being tried twice between the same parties. Learn the meaning, Section 11 CPC, conditions and key Indian cases.
In one sentence: Res judicata is the rule that once a competent court has finally decided a matter between parties, the same matter cannot be argued again between them in a later case.
What does it mean?
Res judicata is Latin for “a matter judged”. It rests on two ideas expressed in Latin maxims:
- Interest reipublicae ut sit finis litium: it is in the public interest that litigation should come to an end.
- Nemo debet bis vexari pro una et eadem causa: no one should be troubled twice for the same cause.
Without the rule, a party who lost could simply file the same dispute again and again, and no judgment would ever be final.
What does Indian law say?
In civil cases, the rule is codified in Section 11 of the Code of Civil Procedure, 1908. For it to apply, generally:
- The matter directly and substantially in issue in the later suit must also have been directly and substantially in issue in the earlier suit.
- The earlier suit must have been between the same parties, or parties claiming under them.
- The earlier court must have been competent to try the later suit.
- The matter must have been heard and finally decided in the earlier suit.
A simple example
- A files a suit against B claiming ownership of a plot, and the court finally decides it in B’s favour after a full trial.
- Years later, A files a fresh suit against B claiming ownership of the same plot on the same basis.
The second suit is likely to be barred by res judicata, because the ownership question has already been decided between the same parties.
Constructive res judicata
The rule covers more than what was actually decided. Under Explanation IV to Section 11, any ground of attack or defence that could and ought to have been raised in the earlier case is treated as if it had been raised and decided. This is called constructive res judicata. A party cannot hold back an argument in the first case and then raise it in the next.
Does it apply outside civil suits?
- Writ petitions: The Supreme Court has held that the principle applies to writ petitions under Article 32 and Article 226. It does not, however, apply to habeas corpus petitions in the same way.
- Other proceedings: The principle has also been applied in other proceedings, such as execution and different stages of the same case.
- Criminal law: The equivalent protection is against double jeopardy. Article 20(2) of the Constitution says no person shall be prosecuted and punished more than once for the same offence, and Section 300 of the Criminal Procedure Code, 1973 (now Section 337 of the Bharatiya Nagarik Suraksha Sanhita, 2023) bars a second trial for the same offence after acquittal or conviction.
Common misunderstandings
- “Any earlier case on the same topic bars a new one.” No. The matter, parties and forum conditions must all be satisfied.
- “A dismissal for default is a final decision.” Generally not. A case dismissed for non-appearance, without being decided on merits, usually does not bar a fresh suit, unless the law says otherwise.
- “It applies to every legal question.” Courts have held that the rule does not bar a later case where the earlier decision was on a pure question of law and the law has since changed, or where applying it would defeat an express provision of law or the public interest.
Leading cases
- Satyadhyan Ghosal v. Deorajin Debi, AIR 1960 SC 941: Explained the basis of the doctrine and held that it applies to different stages of the same proceeding.
- Daryao v. State of U.P., AIR 1961 SC 1457: Held that res judicata applies to petitions under Article 32 of the Constitution.
- Mathura Prasad Bajoo Jaiswal v. Dossibai N.B. Jeejeebhoy, (1970) 1 SCC 613: Discussed when res judicata applies to questions of law.
- Hope Plantations Ltd. v. Taluk Land Board, (1999) 5 SCC 590: Considered the application of res judicata to different proceedings and the importance of finality.
Res judicata and related terms
- Res sub judice: a matter already pending before a court, covered by Section 10 CPC. It stops a second suit while the first is still undecided, whereas res judicata applies after the first has been decided.
- Estoppel: stops a person from contradicting their earlier representation. Estoppel by record is closely linked to res judicata.
- Ratio decidendi: the binding reasoning of a decision.
- Per incuriam: a decision given in ignorance of binding law.
The takeaway
Res judicata gives judgments finality. A party who has had a fair chance to argue a matter before a competent court generally cannot reopen it later, and the rule extends to arguments that could have been raised the first time. It protects both parties from endless litigation and protects the justice system from being used over and over for the same dispute.
