| Office Name | Arni Cpt S.O |
| Pincodes | 601101 |
| Area | Arni Cpt |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Tambaram |
| Postal Region | Chennai Region |
| District | Tiruvallur |
| State | Tamil Nadu |
| Telephone No. | 044-27927783 |
| Office Name | Panayancheri B.O |
| Pincodes | 601101 |
| Area | Panayancheri |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Tambaram |
| Postal Region | Chennai Region |
| District | Tiruvallur |
| State | Tamil Nadu |
| Telephone No. | Na |
| Office Name | Pondavakkam B.O |
| Pincodes | 601101 |
| Area | Pondavakkam |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Tambaram |
| Postal Region | Chennai Region |
| District | Tiruvallur |
| State | Tamil Nadu |
| Telephone No. | Na |
| Office Name | Rallapadi B.O |
| Pincodes | 601101 |
| Area | Rallapadi |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Tambaram |
| Postal Region | Chennai Region |
| District | Tiruvallur |
| State | Tamil Nadu |
| Telephone No. | Na |