supllying various types of material for providing and laying underground drainage line for gp katewadi shirsai chouk to gadadarewasti at-katewadi -excavation (jcb) 2 250 mm np-2 pipe 3 300 mm np-2 pipe 4 450 mm np-2 pipe 5 provididing & constructing the sewer lines b.b masonry circular manhole with an eccentric cone 1.20 m dia at bottom and 0.50 m dia at top upto a depth of 2.00 m and 1.50m dia at bottom and 0.50 m at top a depth of 5.00 and 1.50m dia at bottom and 0.50 m at top a depth of 5.00 m with 23 cm thick brck work depth 2.00 m from top of manhole and 35 cm thick brick work upto depth 5.00 m next depth of chamber and for depth upto 9.00 m 23 cm thick brick work upto depth 2.00 m from top of manhole 35 a) for depth upto 0.50m 6 a) for depth upto 1 m 7 a) for depth upto 1.5 m