repairing of spares of 1789 and 1790 sdl at phularitand underground amp colliery- 1 driving sprocket: welding of teeth by suitable elecrodes 2 grinding and machining of teeth 3 bore machining and welding 4 new hole making and taping 5 transporting and loading charge both side 6 painting charge 7 bucket shaft and pinion: bucket shaft welding and machining as per bush size 8 teeth welding machining and grinding 9 transporting and painting charge 10 link assembly and flight bar: complete opening of flight bar and link assembling 11 bore making machining and welding 12 new big bush making and fitting 13 small bush making and fitting 14 fitting of link assembling and flight bar 15 ht bolt changing 16 both side transporting charge 17 total impact of gst for the purpose of ctc