A filed a suit against B in 2019, claiming that B had wrongfully evicted him from a property. The court in its judgment in 2021, ruled in favor of B, stating that the eviction was lawful and dismissed A's claim. In 2023,

Doctrine of Res Judicata (Section 11 of the Civil Procedure Code, 1908): Section 11 of the Civil Procedure Code, 1908, deals with the doctrine of res judicata (a matter adjudged). It embodies the principle that 'no one shall be twice vexed for the same cause' (S.B. Temple v. V.V.B. Charyulu, (1971) 1 SCJ 215). This principle aims to bring finality to litigation and prevent endless disputes over the same issues. The section states that no Court shall try any suit or issue in which the matter directly and substantially in issue has been directly and substantially in issue in a former suit between the same parties (or parties under whom they or any of them claim), litigating under the same title, in a Court competent to try such subsequent suit or the suit in which such issue has been subsequently raised, and has been heard and finally decided by such Court. In the given situation: A filed a suit against B in 2019 for wrongful eviction. The court ruled in favor of B in 2021, dismissing A's claim and stating the eviction was lawful. A files a new suit in 2023 against B on the same grounds. The new suit filed by A in 2023 is based on the same cause of action and grounds that were already adjudicated and finally decided by a competent court in 2021. Therefore, B's argument that the new suit is barred by the doctrine of res judicata is valid. Requirements for the applicability of the principles of res judicata: Same Matter in Issue: The matter directly and substantially in issue in the former suit must also be directly and substantially in issue in the later suit. 'Directly and substantially in issue' means an issue alleged by one party and denied or admitted by the other, either expressly or by necessary implication. Former Suit Decided: The former suit (the one decided earlier) must have been decided. Heard and Finally Decided: The said issue must have been heard and finally decided by a competent court. Same Parties or Privies: The former suit and the latter suit must be between the same parties or between parties under whom they or any of them claim, litigating under the same title. Conclusion: The principle of res judicata applies here, preventing A from reopening the case on the same grounds, as the matter has already been heard and finally decided by a competent court between the same parties.