Rule 1 of CPC : Rule 1: Minor to sue by next friend.

Explanation using Example

Example 1:

Ravi is a 15-year-old boy who was injured in a car accident caused by a negligent driver. Ravi's parents want to file a lawsuit to claim compensation for his medical expenses and suffering. Since Ravi is a minor, he cannot file the lawsuit on his own. Therefore, his father, Mr. Sharma, files the lawsuit on Ravi's behalf. In this case, Mr. Sharma is referred to as the "next friend" of Ravi in the legal proceedings.

Example 2:

Anita, a 16-year-old girl, has inherited a piece of land from her deceased grandfather. A neighbor, Mr. Verma, unlawfully encroaches on this land and starts construction. Anita wants to take legal action to reclaim her property. Since she is a minor, she cannot initiate the lawsuit herself. Her mother, Mrs. Gupta, steps in to file the lawsuit on Anita's behalf. Here, Mrs. Gupta acts as the "next friend" of Anita in the court case.