Section 28A(4)(a) in Karnataka Urban Water Supply and Drainage Board Act, 1973
(a)No person shall, except with the permission duly obtained from the Board or the Executive Engineer,-(i)enter on any land vested in the Board along which a conduit or pipe or sewer runs or on any premises connected with water supply or drainage;(ii)construct any building, well or other structure or street over any main or sewer belonging to the Board.