Mettupalayam to Chennai Sullurpeta to Tanuku Ramnad to Pondicherry Naidupeta to Rajahmundry Salem to Chennai Tirupathi to Tanuku Chalakudy to Chennai Gobi to Chennai Eluru to Chennai Nellore to Visakhapatnam Villupuram to Ramanathapuram Villupuram to Sivakasi Villupuram to Udumalaipet Udumalaipet to Chennai Pondicherry to Authoor North Pondicherry to Ettayapuram Pondicherry to Madurai Pondicherry to Periyakulam Aluva to Chennai Chennai to Aluva Chennai to Vandiperiyar Madurai to Chittoor (Andhra Pradesh) Madurai to Vellore Kumily to Chennai Kovilpatti to Pondicherry