| Office Name | Alwarthirunagar S.O |
| Pincodes | 600087 |
| Area | Alwarthirunagar |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Chennai City South |
| Postal Region | Chennai Region |
| District | Tiruvallur |
| State | Tamil Nadu |
| Telephone No. | 044-24865000 |
| Office Name | Valasaravakkam S.O |
| Pincodes | 600087 |
| Area | Valasaravakkam |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Chennai City South |
| Postal Region | Chennai Region |
| District | Tiruvallur |
| State | Tamil Nadu |
| Telephone No. | 044-24766625 |