Design, Supply and installation the following : * R.C. pipelines of 600 : 2200 mm dia. and 22 km total length. * G.R.P. pipelines of 350 , 400 & 500 mm dia. and 15 km total length. * U.P.V.C. pipelines of 200, 250, & 300 mm dia. and 64 km total length. * U.P.V.C. connections for the main drainage . * 48 NDRC under road pipe crossings by R.C pipelines of 250 : 2200 mm dia. and 3500 m length .