Tamil Nadu’s 36.505-km Kamalapuram–Oddanchatram section of National Highway 83 will be widened to four lanes, in a project aimed at improving links between industrial centres, agricultural markets and tourism destinations. The section forms part of the wider NH-83 corridor connecting Coimbatore with Nagapattinam Port.

The National Highways Authority of India is undertaking the project under Bharatmala Pariyojana Phase-I. It is being executed through the Hybrid Annuity Mode, with an estimated cost of Rs. 13.19 bn. The work involves expanding the existing highway to improve capacity and provide better infrastructure for passenger and commercial vehicle movement.

The upgraded stretch will strengthen road connectivity with Coimbatore, Tiruppur, Pollachi, Udumalpet and Dindigul. These locations have significant industrial and agricultural activity, making reliable road infrastructure important for the movement of goods, produce and commercial vehicles across the region.

Coimbatore and Tiruppur are among Tamil Nadu’s key industrial centres, while Oddanchatram is known for its agricultural markets. The four-laning is expected to help businesses, traders and farmers transport goods more efficiently by improving access between production centres, markets and other important locations.

NH-83 will also provide a stronger road link between inland areas of Tamil Nadu and Nagapattinam Port on the eastern coast. The improved corridor is expected to support commercial vehicle movement towards the port and strengthen connections between industrial and agricultural centres and coastal logistics facilities.

The upgrade is also expected to improve access to Palani and Kodaikanal. Palani attracts pilgrims visiting the Murugan Temple, while Kodaikanal draws tourists to its hill station setting. Better road conditions could support tourism-related traffic and local businesses that depend on visitors, while making journeys along the corridor smoother for residents and travellers.