| Office Name | Chepauk S.O |
| Pincodes | 600005 |
| Area | Chepauk |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Chennai City Central |
| Postal Region | Chennai Region |
| District | Chennai |
| State | Tamil Nadu |
| Telephone No. | 044-28583200 |
| Office Name | Madras University S.O |
| Pincodes | 600005 |
| Area | Madras University |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Chennai City Central |
| Postal Region | Chennai Region |
| District | Chennai |
| State | Tamil Nadu |
| Telephone No. | 044-25362950 |
| Office Name | Tiruvallikkeni S.O |
| Pincodes | 600005 |
| Area | Tiruvallikkeni |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Chennai City Central |
| Postal Region | Chennai Region |
| District | Chennai |
| State | Tamil Nadu |
| Telephone No. | 044-28517941 |