Section 157 BNS (Bharatiya Nyaya Sanhita)

157. Public servant negligently suffering such prisoner to escape.

Whoever, being a public servant and having the custody of any State prisoner or prisoner of war, negligently suffers such prisoner to escape from any place of confinement in which such prisoner is confined, shall be punished with simple imprisonment for a term which may extend to three years, and shall also be liable to fine.