| Train | Source | Destination | Days Run from Tambaram |
| 20683 - Tbm Sct Sf Express | Tambaram (TBM) | Sengottai (SCT) | Tue Sun |
| # | Station | Arrival | Departure | Halt | Distance | Day |
| 1 | Tambaram (TBM) | Source | 08:50 PM | 0 Mins | 0 KMs | 1 |
| 2 | Chengalpattu Jn. (CGL) | 09:18 PM | 09:20 PM | 2 Mins | 31 KMs | 1 |
| 3 | Villupuram Jn (VM) | 10:48 PM | 10:50 PM | 2 Mins | 134 KMs | 1 |
| 4 | Tiruppadiripuliyur (TDPR) | 11:29 PM | 11:30 PM | 1 Mins | 176 KMs | 1 |
| 5 | Chidambaram (CDM) | 12:03 AM | 12:05 AM | 2 Mins | 219 KMs | 2 |
| 6 | Mayiladuturai Jn (MV) | 12:58 AM | 01:00 AM | 2 Mins | 255 KMs | 2 |
| 7 | Thiruvarur Jn (TVR) | 01:50 AM | 02:00 AM | 10 Mins | 294 KMs | 2 |
| 8 | Tiruturaipundi Jn (TTP) | 02:26 AM | 02:28 AM | 2 Mins | 319 KMs | 2 |
| 9 | Mutupet (MTT) | 02:46 AM | 02:47 AM | 1 Mins | 342 KMs | 2 |
| 10 | Pattukkottai (PKT) | 03:12 AM | 03:14 AM | 2 Mins | 369 KMs | 2 |
| 11 | Peravurani (PVI) | 03:30 AM | 03:31 AM | 1 Mins | 389 KMs | 2 |
| 12 | Arantangi (ATQ) | 03:55 AM | 03:56 AM | 1 Mins | 415 KMs | 2 |
| 13 | Karaikkudi Jn (KKDI) | 04:40 AM | 04:45 AM | 5 Mins | 443 KMs | 2 |
| 14 | Sivaganga (SVGA) | 05:13 AM | 05:15 AM | 2 Mins | 483 KMs | 2 |
| 15 | Aruppukkottai (APK) | 06:13 AM | 06:15 AM | 2 Mins | 548 KMs | 2 |
| 16 | Virudunagar Jn (VPT) | 06:48 AM | 06:50 AM | 2 Mins | 570 KMs | 2 |
| 17 | Tirunelveli Jn (TEN) | 08:45 AM | 08:50 AM | 5 Mins | 684 KMs | 2 |
| 18 | Cheran Mahadevi (SMD) | 09:03 AM | 09:05 AM | 2 Mins | 703 KMs | 2 |
| 19 | Kallidaikurichi (KIC) | 09:13 AM | 09:14 AM | 1 Mins | 714 KMs | 2 |
| 20 | Ambasamudram (ASD) | 09:23 AM | 09:25 AM | 2 Mins | 718 KMs | 2 |
| 21 | Pavurchatram (PCM) | 09:43 AM | 09:45 AM | 2 Mins | 745 KMs | 2 |
| 22 | Tenkasi Jn (TSI) | 10:08 AM | 10:10 AM | 2 Mins | 756 KMs | 2 |
| 23 | Sengottai (SCT) | 10:50 AM | Destination | 0 Mins | 763 KMs | 2 |