Section 67(2)(iii) in The Static and Mobile Pressure Vessels (Unfired) Rules, 2016
(iii)to the officer-in-charge of the nearest police station by the quickest means. Pending the visit of the Chief Controller or Controller or until instruction is received from the Chief Controller or Controller that he does not wish any further investigation or inquiry to be made, all wreckage and debris shall be left untouched except in so far as its removal may be necessary for the rescue of persons injured, and recovery of the bodies of any persons killed by the accident or in the case of railways, for the restoration of through communication.