| Train | Source | Destination | Days Run from Tambaram |
| 20691 - Ncj Antyodaya | Tambaram (TBM) | Nagercoil Junction (NCJ) | Mon Tue Wed Fri Sat Sun |
| # | Station | Arrival | Departure | Halt | Distance | Day |
| 1 | Tambaram (TBM) | Source | 10:40 PM | 0 Mins | 0 KMs | 1 |
| 2 | Chengalpattu Jn. (CGL) | 11:08 PM | 11:10 PM | 2 Mins | 31 KMs | 1 |
| 3 | Villupuram Jn (VM) | 12:40 AM | 12:45 AM | 5 Mins | 134 KMs | 2 |
| 4 | Tiruppadiripuliyur (TDPR) | 01:18 AM | 01:20 AM | 2 Mins | 176 KMs | 2 |
| 5 | Chidambaram (CDM) | 02:28 AM | 02:30 AM | 2 Mins | 219 KMs | 2 |
| 6 | Sirkazhi (SY) | 02:44 AM | 02:45 AM | 1 Mins | 236 KMs | 2 |
| 7 | Mayiladuturai Jn (MV) | 03:26 AM | 03:28 AM | 2 Mins | 256 KMs | 2 |
| 8 | Kumbakonam (KMU) | 03:53 AM | 03:55 AM | 2 Mins | 287 KMs | 2 |
| 9 | Thanjavur Jn. (TJ) | 04:38 AM | 04:40 AM | 2 Mins | 326 KMs | 2 |
| 10 | Tiruchchirappalli Jn. (TPJ) | 06:05 AM | 06:10 AM | 5 Mins | 376 KMs | 2 |
| 11 | Manaparai (MPA) | 06:34 AM | 06:35 AM | 1 Mins | 412 KMs | 2 |
| 12 | Dindigul Jn (DG) | 07:12 AM | 07:15 AM | 3 Mins | 468 KMs | 2 |
| 13 | Madurai Jn (MDU) | 08:15 AM | 08:20 AM | 5 Mins | 536 KMs | 2 |
| 14 | Tirumangalam (TMQ) | 08:37 AM | 08:38 AM | 1 Mins | 553 KMs | 2 |
| 15 | Virudunagar Jn (VPT) | 08:53 AM | 08:55 AM | 2 Mins | 579 KMs | 2 |
| 16 | Satur (SRT) | 09:13 AM | 09:15 AM | 2 Mins | 606 KMs | 2 |
| 17 | Kovilpatti (CVP) | 09:31 AM | 09:33 AM | 2 Mins | 627 KMs | 2 |
| 18 | Tirunelveli Jn (TEN) | 10:50 AM | 10:55 AM | 5 Mins | 693 KMs | 2 |
| 19 | Nanguneri (NNN) | 11:13 AM | 11:14 AM | 1 Mins | 721 KMs | 2 |
| 20 | Valliyur (VLY) | 11:24 AM | 11:26 AM | 2 Mins | 735 KMs | 2 |
| 21 | Nagercoil Junction (NCJ) | 12:35 PM | Destination | 0 Mins | 766 KMs | 2 |