| Train | Source | Destination | Days Run from Tirupati |
| 17421 - Tpty Qln Express | Tirupati (TPTY) | Kollam Jn (QLN) | Wed Sat |
| # | Station | Arrival | Departure | Halt | Distance | Day |
| 1 | Tirupati (TPTY) | Source | 02:35 PM | 0 Mins | 0 KMs | 1 |
| 2 | Chittoor (CTO) | 03:28 PM | 03:30 PM | 2 Mins | 72 KMs | 1 |
| 3 | Katpadi Jn (KPD) | 04:35 PM | 04:40 PM | 5 Mins | 104 KMs | 1 |
| 4 | Jolarpettai Jn. (JTJ) | 05:58 PM | 06:00 PM | 2 Mins | 188 KMs | 1 |
| 5 | Salem Jn (SA) | 07:17 PM | 07:20 PM | 3 Mins | 313 KMs | 1 |
| 6 | Erode Jn (ED) | 08:15 PM | 08:25 PM | 10 Mins | 372 KMs | 1 |
| 7 | Tiruppur (TUP) | 09:08 PM | 09:10 PM | 2 Mins | 423 KMs | 1 |
| 8 | Coimbatore Jn (CBE) | 10:12 PM | 10:15 PM | 3 Mins | 473 KMs | 1 |
| 9 | Palakkad Jn (PGT) | 11:42 PM | 11:45 PM | 3 Mins | 527 KMs | 1 |
| 10 | Thrisur (TCR) | 12:55 AM | 12:58 AM | 3 Mins | 604 KMs | 2 |
| 11 | Aluva (AWY) | 01:50 AM | 01:52 AM | 2 Mins | 659 KMs | 2 |
| 12 | Ernakulam Town (ERN) | 02:15 AM | 02:18 AM | 3 Mins | 675 KMs | 2 |
| 13 | Kottayam (KTYM) | 03:27 AM | 03:30 AM | 3 Mins | 734 KMs | 2 |
| 14 | Changanasseri (CGY) | 03:48 AM | 03:49 AM | 1 Mins | 752 KMs | 2 |
| 15 | Tiruvalla (TRVL) | 03:58 AM | 03:59 AM | 1 Mins | 760 KMs | 2 |
| 16 | Chengannur (CNGR) | 04:09 AM | 04:11 AM | 2 Mins | 769 KMs | 2 |
| 17 | Mavelikara (MVLK) | 04:23 AM | 04:24 AM | 1 Mins | 781 KMs | 2 |
| 18 | Kayankulam Jn (KYJ) | 04:45 AM | 04:47 AM | 2 Mins | 789 KMs | 2 |
| 19 | Kollam Jn (QLN) | 06:20 AM | Destination | 0 Mins | 830 KMs | 2 |