14-day bid window for 12.5 km Assam highway improvement

National Highways & Infrastructure Development Corporation Limited (NHIDCL) is contracting for the one-time improvement of a 12.5 km section of National Highway 37 (Silchar-Churaibari section) in Assam, from Km 0.000 (Karimganj) to km 12.500 (Ulukandi).

Who can bid: Bidders must be experienced Road/Bridge Contractors/firms/organizations. They must have an average annual turnover of at least Rs. 1740.21 Lakhs (40% of the contract value) over the last 5 years. They must have completed at least one similar work of not less than 12.50 km in length within the last 5 years. Firms declared non-performing or blacklisted/debarred by MoRT&H, NHAI, or NHIDCL are excluded. Bidders must possess a valid Digital Signature Certificate (DSC).

Key terms

• Estimated Civil Cost: Rs. 4,350.52 Lakhs (inclusive of GST)
• Tender Type: National Competitive Bidding through e-Tendering (Single stage two cover system)
• Bid Submission Deadline: 15.06.2026 up to 17:00 Hrs IST
• Bid Validity: 120 Days
• Time of Completion: 6 Months / 36 Months (Note: The table lists '6 Month/36 Months' under the 'Time of Completion' column, which is ambiguous in the source text)

Also in the document

• The bid submission window is short, lasting only 14 days from the date of issue (01.06.2026 to 15.06.2026).
• The eligibility criteria require a completed similar work of at least 12.50 km, which matches the exact length of the tendered project.