bids are invited for custom bid for services - lumpsum service charges including gst for 24 months for providing service assistance for chemical and material handling in gpu i and ii and lpg and hrsg plant at gail pata , custom bid for services - lumpsum charges including gst for shifting of 150 mt chemicals from cnp store to plant area using tractor trolley and other material or equipment required used in day to day operations , custom bid for services - lumpsum charges including gst for shifting of 180 mt fresh granular activated carbon from cnp stores to plant area and shifting of spent charcoal taken out from the vessel to the waste storage area designated location