Design and Construction of Twin Tunnel by Shield TBM, Tunnel by Cut and Cover, Underground Ramp and Six Underground metro stations with Entry/Exits and Connecting subway on New ISBT-Patna Station of corridor-2 of Phase-I of Patna MRTS

All information you can find at government e-procurement site.

https://eprocure.gov.in/eprocure/app?component=%24DirectLink_0&page=FrontEndAdvancedSearchResult&service=direct&session=T&sp=SL4QjNU%2FPgnubmnsXtSyJoA%3D%3D