| Train | Source | Destination | Days Run from Kollam Jn |
| 20636 - Anantapuri Express | Kollam Jn (QLN) | Chennai Egmore (MS) | Mon Tue Wed Fri Sat Sun |
| # | Station | Arrival | Departure | Halt | Distance | Day |
| 1 | Kollam Jn (QLN) | Source | 02:55 PM | 0 Mins | 0 KMs | 1 |
| 2 | Paravur (PVU) | 03:07 PM | 03:08 PM | 1 Mins | 12 KMs | 1 |
| 3 | Varkala (VAK) | 03:18 PM | 03:19 PM | 1 Mins | 23 KMs | 1 |
| 4 | Thiruvananthapuram Central (TVC) | 04:00 PM | 04:05 PM | 5 Mins | 64 KMs | 1 |
| 5 | Neyyattinkara (NYY) | 04:27 PM | 04:28 PM | 1 Mins | 81 KMs | 1 |
| 6 | Parassala (PASA) | 04:40 PM | 04:41 PM | 1 Mins | 93 KMs | 1 |
| 7 | Kulitthurai (KZT) | 04:48 PM | 04:51 PM | 3 Mins | 102 KMs | 1 |
| 8 | Eraniel (ERL) | 05:05 PM | 05:06 PM | 1 Mins | 116 KMs | 1 |
| 9 | Nager Coil Town (NJT) | 05:18 PM | 05:21 PM | 3 Mins | 130 KMs | 1 |
| 10 | Aralvaymoli (AAY) | 05:43 PM | 05:44 PM | 1 Mins | 148 KMs | 1 |
| 11 | Valliyur (VLY) | 05:59 PM | 06:01 PM | 2 Mins | 166 KMs | 1 |
| 12 | Nanguneri (NNN) | 06:13 PM | 06:14 PM | 1 Mins | 180 KMs | 1 |
| 13 | Tirunelveli Jn (TEN) | 07:20 PM | 07:25 PM | 5 Mins | 208 KMs | 1 |
| 14 | Kovilpatti (CVP) | 08:13 PM | 08:15 PM | 2 Mins | 273 KMs | 1 |
| 15 | Satur (SRT) | 08:32 PM | 08:34 PM | 2 Mins | 295 KMs | 1 |
| 16 | Virudunagar Jn (VPT) | 08:58 PM | 09:00 PM | 2 Mins | 321 KMs | 1 |
| 17 | Tirumangalam (TMQ) | 09:19 PM | 09:20 PM | 1 Mins | 347 KMs | 1 |
| 18 | Madurai Jn (MDU) | 09:40 PM | 09:45 PM | 5 Mins | 365 KMs | 1 |
| 19 | Dindigul Jn (DG) | 10:47 PM | 10:50 PM | 3 Mins | 431 KMs | 1 |
| 20 | Tiruchchirappalli Jn. (TPJ) | 11:50 PM | 11:55 PM | 5 Mins | 525 KMs | 1 |
| 21 | Vriddhachalam Jn (VRI) | 01:24 AM | 01:26 AM | 2 Mins | 648 KMs | 2 |
| 22 | Villupuram Jn (VM) | 02:38 AM | 02:40 AM | 2 Mins | 702 KMs | 2 |
| 23 | Tindivanam (TMV) | 03:13 AM | 03:15 AM | 2 Mins | 740 KMs | 2 |
| 24 | Melmaruvathur (MLMR) | 03:38 AM | 03:40 AM | 2 Mins | 770 KMs | 2 |
| 25 | Madurantakam (MMK) | 03:53 AM | 03:55 AM | 2 Mins | 781 KMs | 2 |
| 26 | Chengalpattu Jn. (CGL) | 04:18 AM | 04:20 AM | 2 Mins | 805 KMs | 2 |
| 27 | Tambaram (TBM) | 04:48 AM | 04:50 AM | 2 Mins | 836 KMs | 2 |
| 28 | Mambalam (MBM) | 05:09 AM | 05:10 AM | 1 Mins | 854 KMs | 2 |
| 29 | Chennai Egmore (MS) | 06:05 AM | Destination | 0 Mins | 861 KMs | 2 |