NHIDCL Underwater Tunnel Construction Tender 2025

National Highways & Infrastructure Development Corporation Limited (NHIDCL) has issued a tender notification regarding the construction of a landmark 4-Lane Twin Tube Road cum Rail Underwater Tunnel beneath the River Brahmaputra in Assam. This strategic infrastructure project includes 4-lane approach roads along with dedicated railway infrastructure integrated into one of the underwater tubes. Infrastructure developers, qualified engineering firms, and joint ventures with relevant expertise are invited to participate in the competitive bidding process.

Quick Overview

• Project Name: Construction of 4-Lane Twin Tube Road cum Rail Underwater Tunnel under River Brahmaputra
• Organization: National Highways & Infrastructure Development Corporation Limited (NHIDCL)
• Category: Infrastructure / Civil Works Tender
• Location: Assam, India
• Qualification: Experienced Infrastructure Contracting Agencies / JVs
• Application Mode: Online E-Tendering

Project Details

This mega-infrastructure initiative aims to establish a crucial underwater transit link beneath the Brahmaputra River. Designed to serve dual transport modes, the project incorporates both multi-lane highway traffic and dedicated rail infrastructure inside the twin-tube system, enhancing connectivity across Assam and the broader North-Eastern region.

Scope of Work

• Design and construction of a 4-lane twin tube underwater tunnel beneath the Brahmaputra River.
• Integration of railway infrastructure within one of the tunnel tubes.
• Construction of 4-lane highway approach roads connecting to the tunnel.
• Implementation of advanced tunnel ventilation, lighting, drainage, and safety systems.

Eligibility Conditions

• Technical Criteria: Bidding agencies or joint ventures must possess documented experience in executing complex underground tunneling projects, major bridge works, or underwater civil structures.
• Financial Criteria: Must meet minimum annual turnover, net worth, and bidding capacity benchmarks as outlined in the Tender Document.
• Registration: Valid registration on the Central/State Public Procurement Portal.

Documents Required

• Contractor / Firm Registration Certificate.
• Technical Capability Credentials & Past Work Completion Certificates.
• Audited Financial Statements and Tax Clearance Certificates.
• GST Registration & PAN Card.
• EMD / Bid Security Instrument.
• Power of Attorney & Joint Venture Agreement (if bidding as a JV).

How to Apply

1. Access the official e-Procurement Portal (https://eprocure.gov.in).
2. Search for the tender using reference number: NHIDCL/Assam/Record of Discussion/2025.
3. Download the Request for Proposal (RFP) and Tender Specifications.
4. Complete the technical bid and financial bid forms electronically.
5. Upload all required supporting credentials, financial reports, and EMD payment receipts.
6. Digitally sign and submit the bid prior to the closing deadline.

Important Dates

• Tender Release Year: 2025
• Bid Submission Deadline: Refer to the official RFP document

Important Links

• Official E-Procurement Portal: https://eprocure.gov.in
• NHIDCL Official Site: https://nhidcl.com

FAQs

Q1: What is this tender notice about? A1: It is a major infrastructure tender by NHIDCL for constructing an underwater 4-lane road-cum-rail twin tube tunnel under the Brahmaputra River in Assam.

Q2: Can individuals apply for this notification? A2: No, this is a commercial tender intended for qualified infrastructure contractors and engineering construction firms.