repairing / rewinding of 06 nos. solenoid switch, 05 nos. armature and 05 nos. field coil of 4 pole 24 volt delcoremy self starter for dozer (sl.no. 11539, 11839 and 12809), drill (dr202 and dr 242) and dumper (water tanker sl.no. 916) at nocp- excavation department work.