The timings of the following trains are revised as follows:
| Sl.No. | Tr. No. | From-To | Station | Existing | Revised | w.e.f |
| 1 | 12551 | SMVT Bengaluru – Kamakhya | Chennai | | Chennai Central | 15.15/15.40 | 14.45/15.15 | 14.10.2023 |
| 2 | 16779 | Tirupati-Rameswaram | K | | Katpadi | 14.10/14.15 | 14.05/14.10 | 13.10.2023 |
| V | | Vellore Cantt. | 14.43/14.45 | 14.28/14.30 | 13.10.2023 |
| 3 | 17407 | Tirupati-Mannargudi | | | Katpadi | 14.10/14.15 | 14.05/14.10 | 13.10.2023 |
| | | Vellore Cantt. | 14.43/14.45 | 14.28/14.30 | 13.10.2023 |
| 4 | 16853 | Tirupati-Villupuram | Ka | | Katpadi | 16.35/16.40 | 16.25/16.30 | 13.10.2023 |
| 5 | 16780 | Rameswaram-Tirupati | | | Katpadi | 07.35/07.40 | 07.40/07.45 | 13.10.2023 |
| 6 | 16854 | Villupuram-Tirupati | | | Katpadi | 09.00/09.10 | 09.05/09.10 | 13.10.2023 |
| 7 | 17408 | Mannargudi-Tirupati | | | Katpadi | 12.55/13.05 | 13.00/13.05 | 13.10.2023 |
