Operation and Maintenance of distribution system and rising main pipe line ( CI/ DI/ UPVC/ HDPE ) and Operation and Maintenance of Iron Removal Plant of Pressure Type ( IEP Capacity- 130. 00 cub. m/ Hr ), Arsenic cum Iron Removal Plant of Modified Sujapur Sadipur Model ( AIRP Capacity- 79. 00 cub. m/ Hr ) and ( AIRP Capacity- 34. 00 cub. m/ Hr ) and allied works of Ramnachandpur Zone- I, Ramnachandpur Zone- II a