False personation for purpose of act or proceeding in suit or prosecution.

Whoever falsely personates another, and in such assumed character makes any admission or statement, or confesses judgment, or causes any process to be issued or becomes bail or security, or does any other act in any suit or criminal prosecution, shall be punished with imprisonment of either description for a term which may extend to three years, or with fine, or with both.

Section 241 of the Bharatiya Nyaya Sanhita

Section 243 of the Bharatiya Nyaya Sanhita