Authoor North to Villupuram Ramnad to Madurai Naidupeta to Ravulapalem Avinashi to Vellore Rasipuram to Chennai Rajahmundry to Ongole Villupuram to Marthandam Villupuram to Ottanchattram Villupuram to Thiruchendhur Villupuram to Thuckalay Villupuram to Valluvambram Pondicherry to Coimbatore Pondicherry to Kadayanallur Pondicherry to R S Mangalam Pondicherry to Trichy Erode to Chennai Karaikudi to Villupuram Ernakulam to Bangalore Kanyakumari to Villupuram Chennai to Chinnamanur Chennai to Karaikudi Chennai to Rajapalayam Virudhunagar to Bangalore Coonoor to Pondicherry Ravulapalem to Srikalahasti