Nagapattinam to Chennai Srikalahasti to Tuni Alathur(Kerala) to Villupuram Tuni to Chennai Tirupathi to Tadepalligudem Rajahmundry to Ongole Villupuram to Keela Eral Villupuram to Pudukkottai Trivandrum to Bangalore Pondicherry to Changanacherry Pondicherry to Devakottai Pondicherry to Thiruchendhur Erode to Chittoor (Andhra Pradesh) Ernakulam to Pondicherry Hosur to Ernakulam Sattur to Chittoor (Andhra Pradesh) Kanyakumari to Villupuram Chennai to Chalakudy Chennai to Dindigul Chennai to Kadayanallur Chennai to Mettupalayam Chennai to Papanasam(Tanjore) Chennai to Valliyur Vadakkanchery to Villupuram Perinthalmanna to Villupuram