procurement of various spares of 220v dc , 1250a air circuit breaker for emd-iv , stps , sarni . , various spare parts of m/s c&s make 1250a , ah-12dc-cs , air circuit breaker , main isolating contact ( jaw contact ) cs-mic-12d , arcing contacts cs-arccont-12d , main fixed contact ( upper terminal ) fixcont-10d-12d , lower terminal with fitting terminals lwr-trnl-12d , cradle terminal foe drawout cs-ckttml-12d , arc chute cs-arccht-06d-16d , frp laminated safety shutter 3pole ash-1 , single pole complete cs-condunit-12d , charging motor 220vdc cs-amh-1 , micro switch for motor cut off microsw , manual charging handle mclhnd-6d-16d , shunt trip ( tripping coil ) 6d-16d/06n-20s 220vdc cs-avh-s-116-md , closing coil 6d-16d/06n-20s 220vdc 220v dc cs-avh-c-116-md , door mould base ( cradle side ) drmould-20s , draw out gear assembly dograsy-116-3p , charging hook chook-16b , charging hook pin clchookpin-16b , charging hook spring chkspg-16b , charging latch pin clatchpin-16b , charging latch clatch-16b , charging latch spring clchspg-16b , dowell pin csspgdlpn013 , hardware 1 kg hrdware-16b/d , closing coil limit switch cclimsw , closing latch csm1013