supply, installation, testing, commissioning of barrel type floating barge including repairing of 2 nos. of existing barge; loading, carting, shifting of pumping machinery along with accessories from mech. store, porbandar, unloading at fodara dam site, installation, testing and commissioning complete with six months of comprehensive operation and maintenance of the pumping machineries at fodara dam head work site and on completion of oandm , dismentaling of the same incl. loading, carting, and unloading at public health mechanical sub di .