Periyakulam to Villupuram Krishnagiri to Trivandrum Authoor North to Chennai Ramnad to Chittoor (Andhra Pradesh) Alathur(Kerala) to Chennai Naidupeta to Vizag Ongole to Chennai Ongole to Vizag Vellore to Devipattinam Eluru to Sullurpeta Villupuram to Angamaly Villupuram to Ernakulam Devipattinam to Tirupathi Devipattinam to Vellore Virudhachalam to Ramanattukara Erode to Chennai Hosur to Kaliyakkavilai Hosur to Marthandam Chennai to Bhavani Chennai to Cumbum Chennai to Thiruvarur Madurai to Nellore Marthandam to Villupuram Kodaikanal to Villupuram Chittoor (Andhra Pradesh) to Ramanathapuram