Section 312(1) in Kolkata Municipal Corporation Act, 1980
(1)The Municipal Commissioner may place and maintain aqueducts, conduits and lines of mains or pipes or drains over, under, along or across any immovable property, whether within or without the local limits of the Corporation, without acquiring the same and may, at any time for the purpose of examining, repairing, altering or removing any aqueducts, conduits, or lines of mains or pipes or drains, enter on any property over, under, along or across which the aqueducts, conduits or lines of mains or pipes or drains have been placed :Provided that the Corporation shall not acquire any right other than a right of user in the property over, under, along or across which any aqueduct, conduit or line of mains or pipes cot drains is placed.