Description :
Tenders for Excavation Of Tunnel Bed Through Adit/itself In All Types Of Rock By Chiseling, Mucking, Disposing Mucking Muckyard, Lighting, Ventilation Inside Existing Tunnel Including Dewatering Considering Cross Section Of Existing Tunnel As D-shaped With Initial Lead Of 1.5 Km (from Average Face To Dump Yard Including Length Of Adit) Etc. Completed & As Directed By Engineer In Charge