Step 1: Understanding the Question.
Section 11 of the Civil Procedure Code deals with the concept of "Res Judicata," which prevents the same issue from being litigated twice. This section applies to both courts of first instance and appellate courts.
Step 2: Analysis of Options.
- (A) Section 10: This deals with the stay of proceedings, not res judicata.
- (B) Section 11: This is the correct answer, as it specifically defines the concept of res judicata.
- (C) Section 12: This deals with the time limit for suits, not res judicata.
- (D) Section 13: This section deals with the issue of foreign judgments, not res judicata.
Step 3: Conclusion.
Thus, the correct answer is (B) Section 11.