Indian Penal Code (IPC)
Section 145. Joining or continuing in unlawful assembly, knowing it has been commanded to disperse
Whoever joins or continues in an unlawful assembly, knowing that such unlawful assembly has been commanded in the manner prescribed by law to disperse, shall be punished with imprisonment of either description for a term which may extend to two years, or with fine, or with both.
CLASSIFICATION OF OFFENCE
Punishment—Imprisonment for 2 years, or fine, or both—Cognizable—Bailable—Triable by any Magistrate—Non-compoundable.