Section 40(1)(d) in The Code of Criminal Procedure, 1973
(d)the occurrence in or near such village of any sudden or unnatural death or of any death under suspicious circumstances or the discovery in or near such village of any corpse or part of a corpse, in circumstances which lead to a reasonable suspicion that such a death has occurred or the disappearance from such village of any person in circumstances which lead to a reasonable suspicion that a non-bailable offence has been committed in respect of such person;