bids are invited for deep cleaning of one meter dia storm water line at nii, new delhi; cleaning of chocked rcc pipe line upto 1000mm dia/ trench 1000mm x 1000mm size by diesel running vehicle mounting hydraulic operated high pressure suction cum jetting pipe cleaning machine fitted with pump having 4000 litres suction capacity and 6000 litres jetting capacity water tank including skilled operator, supervising engineer etc. for cleaning and partial desilting of manholes and dechocking of rcc pipe lines. dechocking and cleaning of rcc pipe line from one manhole to another by high pressure jetting system of 2200 psi and disposal of complete malba outside the campus at a designated municipal place complete in all respect.