Design, Procurement & Construction of RCC Box Metro tunnel including Birati UG Station building & Subways ( with Entry- Exit Structures ) for two underground Metro Stations ( Birati & Michael Nagar ) by Cut & Cover Method ( Top Down with Diaphragm Wall/ Bottom Up Method with support arrangement ) including architectural finishing, firefighting, water supply, sanitary installation, drainage & BLT works, E & M service, ECS Service, TVS Services, Power Supply System with 750 V DC Traction System including composite Aluminium third Rail from Ch: 6. 250 Km to Ch: 9. 840 Km including all ancillary works in connection with extension of Metro Railway from Noapara to Barasat via Bimanbandar.