erection, testing, commissioning of fire protection system equipments and piping including handling at site stores / storage yard, transporting to site, inspection, pre-assembly, erection, alignment, welding, ndt, fixing of hangers & supports, chemical cleaning / pickling, oil flushing, water flushing, hydro testing, surface finish, supply & application of primer & finish paints including labeling & flow direction on the piping & hangers and supports, pre-commissioning, commissioning, assistance for trial operation of the unit & handing over to customer of fire protection system consisting of water based hydrant and spray system, medium velocity water spray system, high velocity water spray system, inert gas system and portable fire extinguisher system, in addition of erection & commissioning ofcoal bunker de blocking system etc. for 1x660 mw, unit#5 sagardighi project at murshidabad, west bengal.