MRTS Train Timings Suburban Train Codes
| Codes | Originating station | Destination station |
| AB | Arakkonam | Chennai Beach. |
| AAD | Arakkonam | Avadi |
| ADB | Avadi | Chennai Beach |
| ADA | Avadi | Arakkonam |
| ADM | Avadi | Chennai Central |
| ADT | Avadi | Tiruvallur |
| AM | Arakkonam | Chennai Central |
| ANB | Anna Nagar | Chennai Beach |
| BAD | Chennai Beach | Avadi |
| BAN | Chennai Beach | Anna Nagar |
| BG | Chennai Beach | Gummidipundi |
| BP | Chennai Beach | Ponneri |
| BVL | Chennai Beach | Velacherry |
| BT | Chennai Beach | Tiruvallur |
| GB | Gummidipundi | Chennai Beach |
| GM | Gummidipundi | Chennai Central |
| KM | Kadambattur | Chennai Central |
| MA | Chennai Central | Arakkonam |
| MAD | Chennai Central | Avadi |
| MAT | Chennai Central | Tiruttani |
| MG | Chennai Central | Gummidipundi |
| MK | Chennai Central | Kadambattur |
| MN | Chennai Central | Ennore |
| MS | Chennai Central | Pattabiram Military Siiding |
| MSP | Chennai Central | Sullurupetta |
| MT | Chennai Central | Tiruvallur |
| NT | Ennore | Tiruvallur |
| PB | Ponneri | Chennai Beach |
| PM | Ponneri | Chennai Central |
| PBM | Pattabiram | Chennai Central |
| SM | Pattabiram Military Siding | Chennai Central |
| SPM | Sullurupetta | Chennai Central |
| TAM | Tiruttani | Chennai Central |
| TAD | Tiruvallur | Avadi |
| TB | Tiruvallur | Chennai Beach |
| TIM | Tirunindravur | Chennai Central |
| TM | Tiruvallur | Chennai Central |
| TMF | Tiruvallur | Chennai Central (Fast) |
| TRA | Tiruttani | Arakkonam |
| VLB | Velacherry | Chennai Beach |
| BC | Chennai Beach | Chengalpattu |
| CB | Chengalpattu | Chennai Beach |
| BTL | Chennai Beach | Tirumalpur |
| TLB | Tirumalpur | Chennai Beach |