| Train | Source | Destination | Days Run from Tambaram |
| 20681 - Silambu Sf Express | Tambaram (TBM) | Sengottai (SCT) | Wed Fri Sat |
| # | 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 | Melmaruvathur (MLMR) | 09:43 PM | 09:45 PM | 2 Mins | 66 KMs | 1 |
| 4 | Villupuram Jn (VM) | 10:53 PM | 10:55 PM | 2 Mins | 134 KMs | 1 |
| 5 | Vriddhachalam Jn (VRI) | 11:38 PM | 11:40 PM | 2 Mins | 188 KMs | 1 |
| 6 | Tiruchchirappalli Jn. (TPJ) | 01:45 AM | 01:50 AM | 5 Mins | 311 KMs | 2 |
| 7 | Pudukkottai (PDKT) | 02:28 AM | 02:30 AM | 2 Mins | 364 KMs | 2 |
| 8 | Karaikkudi Jn (KKDI) | 03:03 AM | 03:05 AM | 2 Mins | 406 KMs | 2 |
| 9 | Devakottai Road (DKO) | 03:10 AM | 03:11 AM | 1 Mins | 411 KMs | 2 |
| 10 | Sivaganga (SVGA) | 03:38 AM | 03:40 AM | 2 Mins | 447 KMs | 2 |
| 11 | Manamadurai Jn (MNM) | 04:03 AM | 04:05 AM | 2 Mins | 467 KMs | 2 |
| 12 | Aruppukkottai (APK) | 04:43 AM | 04:45 AM | 2 Mins | 512 KMs | 2 |
| 13 | Virudunagar Jn (VPT) | 05:08 AM | 05:10 AM | 2 Mins | 534 KMs | 2 |
| 14 | Tiruttangal (TTL) | 05:26 AM | 05:27 AM | 1 Mins | 555 KMs | 2 |
| 15 | Sivakasi (SVKS) | 05:38 AM | 05:40 AM | 2 Mins | 558 KMs | 2 |
| 16 | Srivilliputtur (SVPR) | 05:53 AM | 05:55 AM | 2 Mins | 575 KMs | 2 |
| 17 | Rajapalayam (RJPM) | 06:08 AM | 06:10 AM | 2 Mins | 586 KMs | 2 |
| 18 | Sankarankovil (SNKL) | 06:33 AM | 06:35 AM | 2 Mins | 619 KMs | 2 |
| 19 | Pambakovil Shandy (PBKS) | 06:49 AM | 06:50 AM | 1 Mins | 631 KMs | 2 |
| 20 | Kadayanallur (KDNL) | 07:04 AM | 07:05 AM | 1 Mins | 640 KMs | 2 |
| 21 | Tenkasi Jn (TSI) | 07:33 AM | 07:35 AM | 2 Mins | 656 KMs | 2 |
| 22 | Sengottai (SCT) | 08:25 AM | Destination | 0 Mins | 664 KMs | 2 |