Step 1: Understanding Res Judicata.
Res judicata is a legal doctrine that prevents a case from being litigated again once it has been finally decided by a court. Under the Civil Procedure Code (CPC), Section 11 specifically deals with the principle of res judicata, ensuring that no matter can be re-litigated once a final judgment has been passed on it.
Step 2: Explanation of the options.
- (a) 9: This deals with the right of the defendant to challenge the jurisdiction of the court.
- (b) 10: This deals with the procedure for suits in civil courts.
- (c) 11: This is the correct answer, as it specifically deals with the principle of res judicata.
- (d) 12: This section addresses the issue of the number of plaintiffs or defendants in a case, but not res judicata.
Step 3: Conclusion.
Thus, the correct answer is (c) 11.