NH31 Bihar: Consultancy for 4-Lane Widening and Upgradation Detailed Project Report

Work Description - Consultancy Services For Preparation Of Dpr For Widening And Upgradation To 4 Lane Divided Carriageway Of Korha (junction Of Nh31 And Nh231) To Bihar/west Bengal Border Section Of Nh31 In Bihar (length 55.40 Km.)

**TENDER DESCRIPTION** The National Highways Authority of India (NHAI), a prominent Public Sector Undertaking, is pleased to invite bids for Consultancy Services for the preparation of a Detailed Project Report (DPR). This vital project entails the widening and upgradation of the Korha (junction of NH31 and NH231) to Bihar/West Bengal Border section of NH31 in Bihar, spanning a length of 55.40 kilometers, to a 4-Lane Divided Carriageway. The tender is an Open Tender, with two covers for submission, and is scheduled for e-publication on June 22, 2026, at 02:00 PM. Interested parties are advised that the download of tender documents will commence on June 23, 2026, at 09:30 AM and will conclude on August 20, 2026, at 11:00 AM. Similarly, bid submissions will be accepted from June 23, 2026, at 09:30 AM until August 20, 2026, at 11:00 AM. The mandatory tender fee is ₹5,000, payable to NHAI in New Delhi. The Bid Opening will take place on August 21, 2026, at 11:30 AM at NHAI HQ. The total estimated tender value is ₹3,68,92,500, and the proposed work duration is 270 days, with a bid validity of 120 days. This consultancy service is classified under the "Consultancy" product category.