providing assistance in day to day r . m works of salal power house mechanical maintenance pipe and pumping section and dhyangarh workshop , fixed charges , providing assistance in day to day r&m works of salal power house mechanical maintenance pipe & pumping section and dhyangarh workshop ( as per scc and scope of work ) ( payments towards labour wages only inclusive of gst@18% ) , to be quoted by contractor , service charges: for providing services ( mentioned in item no . 01 ) towards contractor profit & overhead charges , supervision charges , statutory requirement etc . ( as per scc and scope of work ) , transportation charges ( as per scc and scope of work ) , supplying / providing of consumables/ ppes materials ( as per scc and scope of work )