General Civil Maintenance Of 9 Nos. Of Metro Stations I.e. Koteshwar Station , Vishwakarma Station Tapovan Circle Station , Narmada Canal Station , Koba Circle Station , Juna Koba , Koba Gam , Sachivalaya And Sector 10 Including Viaduct From Koteshwar Station To Gnlu Station And Viaduct Of Sector - 1 Station To Sachivalaya Station Of Ahmedabad Metro Rail Project Phase - 2