NHAI Completes Construction of Chhattisgarh’s First National Highway Tunnel.

The National Highways Authority of India (NHAI) has completed construction of a 2.79-km-long tunnel in Chhattisgarh—the first of its kind in the state—within just 12 months, officials said on Sunday.

Part of the Raipur–Visakhapatnam economic corridor, the tunnel runs beneath hilly terrain along the border of Kanker and Kondagaon districts, near the Odisha border.

The newly completed section is the left-hand side tunnel, while excavation for the parallel right-hand tunnel is underway and expected to finish by the end of the year, according to NHAI officials.