Section 159A(3) in The Howrah Municipal Corporation Act, 1980
(3)All borrow pits dug in the course of construction and repairs of buildings, roads, or embankments, shall be deep and connected with each other in the formation of a drain directed towards the lowest level and properly sloped for discharge into a river, stream, channel, or drain, and no person shall create any isolated borrow pit which is likely to cause accumulation of water which may again in turn, may breed mosquito.
