supply of various material for work supply of various material for construction of underground drainage sewer for gp karhawagaj ( tukainagar ) tal baramati dist pune- 1 250 mm np2 pipe ( i s weight of pipes 57.10 kg / m as per current dsr p no 43 ) 2 providing and constructing b.b masonry circular manhole with concentric cone 1.20m dia at bottom and 0.50 m dia at top an upto depth of 2.0 m with 23 cm thick brick work in cm 1:4 proportion excluding excavation including foundation concreate in c.c 1:2:4 proportion , finishing channels in smooth rendering providing c i dapuri type steps each weighing 5.5 kg 1:2:4 coping and providing and fixing approved make and quality s.f.r.c frame and cover of 56 cm dia etc. complete as directed by engineering charge