In an effort to improve the efficiency of its services, the Metropolitan Transport Corporation (MTC) will implement zonal reorganization of its bus route numbers, effective May 1, 2025.
The MTC, which serves the travel needs of Chennai and its environs explained that the reorganization aims to group route numbers by zone. As part of this process, 7 route numbers will be changed; however, the actual bus routes will remain unchanged. Details of the specific number changes were provided by the MTC.
| S.No. | Original Route No. | Originating Place | Destination Place | Modified Route No. |
|---|---|---|---|---|
| 1. | 121F | Madhavaram | Tambaram | 170A |
| 2. | 121H | Kalviar Kannaathasan Nagar | Tambaram | 170T |
| 3. | 11G EXT. | Ambattur Industrial Estate | Broadway | 11M |
| 4. | 18AX | Iyyappanthangal | Broadway | 18A |
| 5. | 91K | Thiruvanmiyur | Kilambakkam | 91 |
| 6. | 66X | Poonamallee | Kelambakkam | 66PX |
| 7. | 121H ET. | Kalviar Kannaathasan Nagar | Kilambakkam | 170TX |
