| Chennai: KSR Bengaluru, Mangaluru Trunk Lines |
| Chennai - Bengaluru - Mysuru - Chamarajanagar |
1 ↗ |
| Jolarpettai - Coimbatore - Kozhikkode - Mangaluru |
2 ↗ |
| Gudur - Tirupati - Vellore - Villupuram - Puducherry |
3 ↗ |
| Salem - Karur - Dindigul |
4 ↗ |
| Erode - Karur - Tiruchchirappalli |
5 ↗ |
| Coimbatore - Mettupalaiyam - Udhagamandalam |
6 ↗ |
| Shoranur - Thrissur - Cochin Harbour Terminus |
7 ↗ |
| Shoranur - Nilambur Road |
8 ↗ |
| Ernakulam - Alappuzha - Kayankulam |
9 ↗ |
| Ernakulam - Kottayam - Thiruvananthapuram Central - Tirunelveli |
10 ↗ |
| Chennai: Main and Chord Lines |
| Chennai - Mayiladuturai - Rameswaram (Main Line) |
20 ↗ |
| Villupuram - Madurai - Tuticorin (Chord Line) |
21 ↗ |
| Virudunagar - Tenkasi - Kollam (Chord Line) |
22 ↗ |
| Chennai Beach - Velachery (MRTS) |
23 ↗ |
| Chengalpattu - Kanchipuram - Arakkonam |
24 ↗ |
| Cuddalore - Vriddhachalam - Salem - Yeshwantpur |
25 ↗ |
| Mayiladuthurai - Thiruvarur - Tirutturaipundi - Karaikudi |
26 ↗ |
| Thanjavur - Thiruvarur - Nagapattinam - Karaikkal |
27 ↗ |
| Dindigul - Palani - Pollachi - Coimbatore |
28 ↗ |
| Pollachi - Palakkad |
29 ↗ |
| Madurai - Manamadurai |
30 ↗ |
| Madurai - Bodinayakkanur |
31 ↗ |
| Vanchi Maniyachi - Tirunelveli - Tenkasi |
32 ↗ |
| Tirunelveli - Tiruchendur - Tissianvilai |
33 ↗ |
| KSR Bengaluru - Secunderabad - Manmad Trunk Line |
| KSR Bengaluru - Secunderabad - Manmad |
40 ↗ |
| Dharmavaram - Pakala |
41 ↗ |
| Yelahanka - Kolar - Bangarpet |
42 ↗ |
| Vikarabad - Parbhani |
43 ↗ |
| KSR Bengaluru - Pune, SS Hubballi - Guntur Trunk Lines |
| KSR Bengaluru - SS Hubballi - Miraj - Pune |
50 ↗ |
| Mysuru - Hassan - Arsikere |
51 ↗ |
| KSR Bengaluru - Nelamangala - Hassan - Mangaluru |
52 ↗ |
| Birur - Shivamogga - Talaguppa |
53 ↗ |
| Londa - Madgaon - Vasco Da Gama |
54 ↗ |
| SS Hubballi - Guntakal - Guntur - Tenali - Repalle |
55 ↗ |
| Chikjajuru - Rayadurg - Ballari |
56 ↗ |
| Hosapete - Amaravathi Colony |
57 ↗ |
| Bidar - Kalburagi |
58 ↗ |
Bankers 
Chambal 
Tunnel 27