Municipality to provide drainage, sewerage and outfall.

The Municipality shall, either on its own, or through a Department, or organization, of the State Government, or any agency, construct and maintain drains and sewers, and provide a safe and sufficient outfall, in or outside the municipal area, for effectual drainage and proper discharge of storm-water and sewage of the municipal area in such manner as may not cause any nuisanoe, either by flooding any part of the municipal area or any area surrounding the outfall or in any other way: Provided that no place, which has not been used before the commencement of this Act for any of the purposes specified inthis section, shall, on the commencement of this Act, be so used except- (i) in conformity with the provisions of the Sikkim Urban and Regional Planning and Development Act, 1998, relating to land use planning or any other law relating thereto for the time being in force, or Act NO.7 of 1998. (ii) with the approval of the State Government, in the absence of any such law: Provided further that with effect from such date as may be appointed by the State Government in this behalf, no sewage shall be discharged into any watercourse until it has been so treated as not to affect prejudicially the purity and the quality of the water of such watercourse.