National Highway 38 (NH 38) is a National Highway in India. This highway runs entirely in the state of Tamil Nadu.
The National Highway NH-38 originates from Vellore and terminates at Thoothukudi. It passes through the major cities of Tamilnadu. The cities and towns includes ( from Vellore to Thoothukudi) Polur, Tiruvannamalai, Villupuram, Ulundurpettai, Perambalur, Trichy, Melur, Madurai, Aruppukottai, Ettayapuram.