| Office Name | Edapalayam S.O |
| Pincodes | 600003 |
| Area | Edapalayam |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Chennai City North |
| Postal Region | Chennai Region |
| District | Chennai |
| State | Tamil Nadu |
| Telephone No. | 044-25330151 |
| Office Name | Madras Medical College S.O |
| Pincodes | 600003 |
| Area | Madras Medical College |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Chennai City North |
| Postal Region | Chennai Region |
| District | Chennai |
| State | Tamil Nadu |
| Telephone No. | 044-25364272 |
| Office Name | Park Town H.O |
| Pincodes | 600003 |
| Area | Park Town |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Chennai City North |
| Postal Region | Chennai Region |
| District | Chennai |
| State | Tamil Nadu |
| Telephone No. | 044-25340651 |
| Office Name | Ripon Buildings S.O |
| Pincodes | 600003 |
| Area | Ripon Buildings |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Chennai City North |
| Postal Region | Chennai Region |
| District | Chennai |
| State | Tamil Nadu |
| Telephone No. | 044-25615680 |