Comprehensive Annual Maintenance Contract (Amc) Including Daily Operation And Overhauling Of Air Cooled Floor Mounted Packaged Unit Air Conditioner With Scroll Compressor 3x13.5 Ton Capacity Installed At Rri At Sahibganj, Jamalpur And Comprehensive Annual Maintenance Contract (Amc) Of 2x8.5 Ton Packaged Ac Plant At Relay Room Hsda, Jrle, Nfk Central And 2x5.5 Ton At Relay Room At Ahn, Dgle, Sple, Nfk Relay Hut, 16.5 Ton At Kalindry, 38.5 Ton At Mahananda Bhawan &Amp 22 Ton At Conference Room/