| | Number | Station |
| 100 | Police Control Room | |
| 101 | Fire Service | |
| 102 | Ambulance | |
| 103 | Traffic Emergency | |
| 131 | Central Railway | |
| 135 | Egmore Railway Station | |
| 1953 | Changed No Enquiry(Phone) |
| | Number | Station |
| 100 | Police Control Room | |
| 101 | Fire Service | |
| 102 | Ambulance | |
| 103 | Traffic Emergency | |
| 131 | Central Railway | |
| 135 | Egmore Railway Station | |
| 1953 | Changed No Enquiry(Phone) |