Appointment Of Authority Engineer For Providing Project Management Services For Design, Procurement &Amp Construction Of Rcc Box Metro Tunnel Including Birati Ug Station Building &Amp Subways (With Entry-Exit Structures) For Two Underground Metro Stations (Birati &Amp Michael Nagar) By Cut &Amp Cover Method (Top Down With Diaphragm Wall/ Bottom Up Method With Support Arrangement) Including Architectural Finishing, Firefighting, Water Supply, Sanitary Installation, Drainage &Amp Blt