Repairing Of Track Machines By Welding And Gas Cutting Of Various Parts In Connection With Ioh And Other Maintenance At Satellite Depot/Blgr And Reconditioning Of Spare Parts Of Different Components Of Bcm At Bcm Machine Base Station & At Site Of Any Other Track Machines Working In Sambalpur Division Under Aen/Tm/Sbp For The Period Of 24 Months.