Penalty for obstructing contractor or removing mark.

If any person:- (a) obstructs or assaults any person with whom the authority has entered into a contract for the performance or execution by such person of his duty or of anything which he is empowered or required to do under this Act; or (b) removes any mark set up for the purpose of indicating any level or direction necessary to the execution of works authorized under this Act, shall be punishable with fine which may extend to Rs. 500 or with or without simple imprisonment for a term which may extend to two months.