| owspan=2 align=left|Use | rowspan=2 align=left|Livery | colspan=3|Vehicle Nos. |
| ew | Old | TSOH | TSO | TSOH |
| lign=center|910001 | align=center|8309 | Operates with Radio Survey Train 1 | Railtrack Blue/Green | align=center|72616 | align=center|72708 | align=center|72639 |
| lign=center|910002 | align=center|8307 | Operates with Radio Survey Train 2 | Railtrack Blue/Green | align=center|72612 | align=center|72706 | align=center|72613 |
| lign=center|- | align=center|8308 | - | Railtrack Blue/Green | align=center|72614 | align=center|72707 | align=center|72635 |
| lign=center|- | align=center|8316 | Operates with Ultrasonic Test Train with 62482 + 99666 | Railtrack Blue/Green | align=center|72630 | align=center|- | align=center|72631 |