Power of entry to inspect, survey or execute work.

The Commissioner or any person authorised by him in this behalf may enter into any building or land with or without assistance of workmen, in order to make any inquiry, inspection, test, examination, survey, measurement or valuation, or for the purpose of lawfully placing or removing meters, instruments, pipes or apparatus or to execute any other work which is authorised by the provisions of this Act, or of any rule, byelaw, regulation or order made under it, or where it is necessary for any of the purposes of this Act or in pursuance of any of the said provisions to make or execute: Provided that,- (a) no such entry shall be made after sunset or before sunrise; (b) no place used as a dwelling house or no part of a public building which is used as dwelling house shall be entered without giving twenty-four hours previous notice of the intention to make such entry; and (c) such inspection shall be made in so far as it is practicable ensuring privacy to the female members residing in such dwelling house.