DPR Preparation for Assam Nagabasti Tunnel Twin-Tube Conversion

Work Description - Consultancy Services For Preparation Of Detailed Project Report (dpr) For Construction Of Second Parallel Tube Adjacent To Existing Nagabasti Single Tube Tunnel (ch. 138) For Its Conversion Into Twin Tube 4 Lane Configuration In The State Of Assam

This tender, issued by the National Highways Authority of India (NHAI), is an Open Tender for Consultancy Services, specifically for the preparation of a Detailed Project Report (DPR) for the construction of a second parallel tube adjacent to the existing Nagabasti single-tube tunnel (Ch. 138) in Assam. The project aims to convert this section into a twin-tube, 4-lane configuration. The tender is advertised with a Tender Reference Number NEDIV 22/1/2026 Northeast Division/E 317584 and has a Tender Value of ₹1,99,11,500. Key dates for interested parties include the Document Download Start Date and Bid Submission Start Date of June 18, 2026, at 05:30 PM. The deadline for document download and bid submission is August 18, 2026, at 11:00 AM, with the Bid Opening Date scheduled for August 19, 2026, at 11:30 AM. A tender fee of ₹5,000 is applicable, payable to NHAI in New Delhi. The tender involves two covers, with Cover 1 for Fee/PreQual/Technical documents and Cover 2 for the Finance bid. The contract form is Item Rate, and the period of work is stipulated as 150 days, with a bid validity of 120 days. The tender is being managed by L S RAJPUROHIT from NHAI HQ, located at NHAI HQ, Pincode 110075.