Explain Section 129 regarding a public servant negligently suffering such prisoner to escape.
Section 129 states that 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 that may extend to three years, and shall also be liable to a fine. [Chapter 6, Section 129]