consultancy services for preparation of detailed project report (dpr) for four laning of tn/kl border thondi section (tentative length 225 km) of nh 85 in tamil nadu (2nd call)

National Highway Authority Of India has invited bids for the consultancy services for preparation of detailed project report (dpr) for four laning of tn/kl border thondi section (tentative length 225 km) of nh 85 in tamil nadu (2nd call).. Please refer to the tender document for project value and EMD details. Interested bidders can submit applications until 8 October 2026, with the technical opening scheduled for 9 October 2026.