National Highway 336 (India)  National Highway 336 (NH 336) is a National Highway which runs for 52 km completely in the state of Tamil Nadu, India. It is part of the old National Highway 210. The Road splits off from NH-36 at junction on the outskirts of Pudukkottai till Trichy where Keeranur being major town in-between. Many important places exists along the route like Bharathidasan University, Anna University Trichy, Indian Institute of Management Tiruchirappalli, and Trichy Airport.