supply and installation of 50 mbps internet leased line connectivity across 79 govt polytechnic colleges across west bengal for three years with cloud hosted centralized management / orchestration / controller / analytics solution with 24x7 support with suitable licenses to be provided from bidders cloud with 6 month storage- 1 annual recurring charges for 50 mbps ill with 8 public ips along with cpe devices with ngfw features. (this is to be considered for initial deployment in 1st year) 1st year. 2 annual recurring charges for 50 mbps ill with 8 public ips along with cpe devices with ngfw features.2nd year 3 annual recurring charges for 50 mbps ill with 8 public ips along with cpe devices with ngfw features.3 rd. year 4 cloud hosted centralized management / orchestration / control / analytics layer with 3 years 24x7 support with suitable licenses to be provided from bidders cloud with 6 months storage. 5 annual recurring charges for 75 mbps ill with 8 public ips along with cpe devices with ngfw features (rate to be considered in case of upgradation from 50 mbps bandwidth). rate to be valid for 3 years. 6 annual recurring charges for 100 mbps ill with 8 public ips along with cpe devices with ngfw features. (rate to be considered in case of upgradation). rate to be valid for 3 years. 7 annual recurring charges for 150 mbps ill with 8 public ips along with cpe devices with ngfw features (rate to be considered in case of upgradation). rate to be valid for 3 years.