| Train | Source | Destination | Days Run from Sengottai |
| 20684 - Sct Tbm Sf Express | Sengottai (SCT) | Tambaram (TBM) | Tue Sat |
| # | Station | Arrival | Departure | Halt | Distance | Day |
| 1 | Sengottai (SCT) | Source | 05:35 PM | 0 Mins | 0 KMs | 1 |
| 2 | Tenkasi Jn (TSI) | 05:46 PM | 05:48 PM | 2 Mins | 8 KMs | 1 |
| 3 | Pavurchatram (PCM) | 05:59 PM | 06:00 PM | 1 Mins | 18 KMs | 1 |
| 4 | Ambasamudram (ASD) | 06:13 PM | 06:15 PM | 2 Mins | 45 KMs | 1 |
| 5 | Kallidaikurichi (KIC) | 06:21 PM | 06:22 PM | 1 Mins | 50 KMs | 1 |
| 6 | Cheran Mahadevi (SMD) | 06:30 PM | 06:31 PM | 1 Mins | 61 KMs | 1 |
| 7 | Tirunelveli Jn (TEN) | 06:55 PM | 07:00 PM | 5 Mins | 80 KMs | 1 |
| 8 | Virudunagar Jn (VPT) | 08:18 PM | 08:20 PM | 2 Mins | 193 KMs | 1 |
| 9 | Aruppukkottai (APK) | 08:43 PM | 08:45 PM | 2 Mins | 215 KMs | 1 |
| 10 | Sivaganga (SVGA) | 09:48 PM | 09:50 PM | 2 Mins | 280 KMs | 1 |
| 11 | Karaikkudi Jn (KKDI) | 10:48 PM | 10:50 PM | 2 Mins | 321 KMs | 1 |
| 12 | Arantangi (ATQ) | 11:15 PM | 11:16 PM | 1 Mins | 349 KMs | 1 |
| 13 | Peravurani (PVI) | 11:37 PM | 11:38 PM | 1 Mins | 374 KMs | 1 |
| 14 | Pattukkottai (PKT) | 12:06 AM | 12:08 AM | 2 Mins | 394 KMs | 2 |
| 15 | Mutupet (MTT) | 12:31 AM | 12:32 AM | 1 Mins | 422 KMs | 2 |
| 16 | Tiruturaipundi Jn (TTP) | 12:50 AM | 12:52 AM | 2 Mins | 444 KMs | 2 |
| 17 | Thiruvarur Jn (TVR) | 01:40 AM | 01:50 AM | 10 Mins | 469 KMs | 2 |
| 18 | Mayiladuturai Jn (MV) | 02:38 AM | 02:40 AM | 2 Mins | 508 KMs | 2 |
| 19 | Chidambaram (CDM) | 03:13 AM | 03:15 AM | 2 Mins | 545 KMs | 2 |
| 20 | Tiruppadiripuliyur (TDPR) | 03:49 AM | 03:50 AM | 1 Mins | 587 KMs | 2 |
| 21 | Villupuram Jn (VM) | 05:15 AM | 05:20 AM | 5 Mins | 630 KMs | 2 |
| 22 | Chengalpattu Jn. (CGL) | 06:38 AM | 06:40 AM | 2 Mins | 733 KMs | 2 |
| 23 | Tambaram (TBM) | 07:25 AM | Destination | 0 Mins | 763 KMs | 2 |