Purchase of various materials - c.i.d. joint (rubber ring nut bolt), c.i.tel piece, c.i.tee, c.i.band, c.i. reducer, c.i. sluce valve, c.i. nrv, c.i.double acting air valve 50 m.m., c.i.double acting air valve 80 m.m., c.i. single acting air valve, rubber gaskit, zip coupling complete set, pipe wise steel, demolition electric hemmer (alfa, boch & hetaichi make) for operation and maintenance of water supply system under municipal council mp.