HMWSSB (Hyderabad Metropolitan Water Supply and Sewerage Board) is constitued under Hyderabad Metropolitan Water Supply and Sewerage Act 1989 (Act No . 15 of 1989 ), with the following Functions & Responsibilities in the Hyderabad Metropolitan Area. The Supply of potable water including planning, design, construction, maintenance, operation & management of water supply system, manholes, water leakage, water treatment plants in Hyderabad Metropolitan Area. Sewerage, Sewerage Disposal and sewer