Providing The Service Of Their Engineers For The Purpose Of Carrying Out, Checking, Maintenance And Overhauling Of The Machines Working At Railway Flash Butt Welding Plant At Gonda (Up) As Per The Laid Down Schedule, Including Their Repairing During Breakdowns With The Requisite Supply Of Spares Required For Attending Breakdowns And For Maintaining Of Spares At The Plant For A Period Of 2 (Two) Years.