imp of passage and drainage at om sai seva society near lata survase house, navagaon, dahisar (west) in r/n ward imp of p and d at om sai seva society near lata survase house, navagaon, dahisar (west) in r/n ward - removing r s ladi excavation in earth etc... dismantling of old s.w. pipes and bed concrete :250 mm dia (existing) providing, laying and jointing glazed stoneware pipes 250mm p/l cement concrete 1:4:8 encasment dia 250mm p/l. in bedding cement concrete nominal mix of 1:3:6 proving and fixing rough shahabad ladi etc. complete const. of inspection chamber extra on item cs-ps-194 for additional depth p/f m.s. frame providing and fixing in pvc pipe 75mm removing and refixing g.1. pipes of any size p/f cast iron grating