Annual And Maintenance Various Rural W/s Scheme Thanesar :- ` Dnit For Comprehensive Maintenance Of 72 Nos Tws Diaphragm Metering Chemical Dozing System (mechanical And Electronics Chlorinators) Including Material And Including Cost Of Transportation For Bleaching Powder/ Sodium Hypochloride From Destination / Reserve Stock To The Site Of Works And All Other Works Contingent There To (under Sde, Phesd No.1 Kkr )