Assam Brahmaputra River Underwater Road-Rail Tunnel Construction (EPC)

Work Description - Construction Of 4 Lane Twin Tube Road Cum Rail Underwater Tunnel Under River Brahmaputra, Including 4 Lane Approaches Along With Provision Of Railway Infrastructure In One Of The Tubes, In The State Of Assam On Epc Mode

This tender, identified by Tender ID 2026_NHIDC_924253_1 and Reference Number NHIDCL/Assam/Record of Discussion/2025, is an open tender invited by the National Highways and Infrastructure Development Corporation (NHIDCL), a Central Government Ministry/Department, for the critical "Construction of 4 Lane Twin Tube Road cum Rail Underwater Tunnel under River Brahmaputra, including 4 Lane approaches along with provision of Railway infrastructure in one of the tubes, in the state of Assam on EPC Mode." The estimated tender value is a substantial ₹1,19,82,36,00,000, and the works are to be completed within 1826 days. Key dates for interested parties include the document download period from 31-Aug-2026 06:00 PM to 30-Sep-2026 06:00 PM, bid submission from 24-Sep-2026 11:00 AM to 30-Sep-2026 06:00 PM, and bid opening on 01-Oct-2026 06:00 PM. A pre-bid meeting is scheduled for 17-Sep-2026 11:00 AM at NHIDCL HQ New Delhi. The Earnest Money Deposit (EMD) required is ₹6,00,00,000, payable to MD NHIDCL, and the Tender Fee is ₹5,00,000, also payable to MD NHIDCL. The tender involves a single cover system for Fee/PreQual/Technical/Finance submissions and is an EPC mode contract. Further details regarding NDA/Pre Qualification are available in the tender documents. The tender is managed by Saurav Deo from NHIDCL HQ New Delhi.