South Central Railway has notified for change in the days of service of Train Nos.17651/17652 Chengalpattu – Kacheguda - Chengalpattu Express, Train Nos. 17653/17654 Kacheguda – Puducherry- Kacheguda Express, Train Nos. 17643/17644 Chengalpattu – Kakinada Port – Chengalpattu Circar Express & Train Nos. 17655/17656 Kakinada Port- Puducherry- Kakinada Circar Express as given below:
| Sl No | Train No. & Description | Existing Days of Service | Revised Days of Service | With effect from Journey commencing on |
| 1 | Train No. 17651 Chengalpattu – Kacheguda Express | Tuesday, Wednesday, Saturday and Sunday | Wednesday, Thursday, Saturday and Monday | 04.10.2025 (Saturday) |
| 2 | Train No. 17652 Kacheguda – Chengalpattu Express | Monday, Tuesday, Friday and Saturday | Monday, Tuesday, Thursday and Saturday | 02.10.2025 (Thursday) |
| 3 | Train No. 17653 Kacheguda – Puducherry Express | Wednesday, Thursday and Sunday | Wednesday, Friday and Sunday | 01.10.2025 (Wednesday) |
| 4 | Train No. 17654 Puducherry – Kacheguda Express | Monday, Thursday and Friday | Tuesday, Friday and Sunday | 05.10.2025 (Sunday) |
| 5 | Train No. 17643 Chengalpattu – Kakinada Port Circar Express | Tuesday, Wednesday, Saturday and Sunday | Tuesday, Wednesday, Friday and Sunday | 03.10.2025 (Friday) |
| 6 | Train No. 17644 Kakinada Port – Chengalpattu Circar Express | Monday, Tuesday, Friday and Saturday | Tuesday, Wednesday, Friday and Sunday |
| 7 | Train No. 17655 Kakinada Port – Puducherry Circar Express | Wednesday, Thursday and Sunday | Monday, Thursday and Saturday | 04.10.2025 (Saturday) |
| 8 | Train No. 17656 Puducherry – Kakinada Port Circar Express | Monday, Thursday and Friday | Monday, Thursday and Saturday | 02.10.2025 (Thursday) |
The departure time of Train No. 17654 Puducherry – Kacheguda Express will be revised as follows:
| Station | Existing Departure Timings | Revised Departure Timings | With effect from Journey Commencing on |
| Puducherry | 13.00 | 12.45 | 05.10.2025 |
*There is no change in the timings of the train in the enroute stations*
There will be no change in the timings or schedule of Train Nos.17651/17652 Chengalpattu – Kacheguda - Chengalpattu Express, Train No. 17653 Puducherry- Kacheguda Express, Train Nos. 17643/17644 Chengalpattu – Kakinada Port – Chengalpattu Circar Express & Train Nos. 17655/17656 Kakinada Port - Puducherry- Kakinada Circar Express,
Consequent to the change in the days of operation of above trains, the timings of the following trains at Puducherry Station will be revised as follows:
1. The revised departure timings of Train No. 16861 Puducherry – Kanniyakumari Weekly Express with effect from 05th October, 2025:
| Station | ↓ | Existing Departure timings | Revised Departure Timings |
| Puducherry | 13.00 | 13.10 |
2. The revised arrival timings of Train No. 22404 New Delhi – Puducherry Weekly Superfast Express with effect from 05th October, 2025
| Station | ↑ | Existing Arrival timings | Revised Arrival Timings |
| Puducherry | 13.20 | 13.40 |
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