bids are invited for repair, maintenance, and installation of plant/ systems/equipments (version 2) - repairing of aluminium metal frame by replacing the hinge and pivot bearing holding at 400kv gis agra south; replacement of damaged and broken and cracked glass on door .. , repair, maintenance, and installation of plant/ systems/equipments (version 2) - replacement of damaged broken cracked glass on door sliding window control room entrees gate etc; this includes replacing of glass with same thickness new glass of same .. - repairing of aluminium metal frame by replacing the hinge/pivot bearing holding the door so that proper smooth movement of door takes place this includes safe un-mounting of door, repairing damaged metal knob, joints, handle, body of door then safe mounting of door on proper channel. , replacement of damaged/ broken/ cracked glass on door. sliding window, control room, entrees gate etc. this includes replacing of glass with same thickness new glass of same quality and fitting it into aluminum frame with new rubber sealing.