| Office Name | Nandiambakkam B.O |
| Pincodes | 600120 |
| Area | Nandiambakkam |
| 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 | North Chennai Thermal Pp S.O |
| Pincodes | 600120 |
| Area | North Chennai Thermal Pp |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Tambaram |
| Postal Region | Chennai Region |
| District | Tiruvallur |
| State | Tamil Nadu |
| Telephone No. | 044-98947244 |
| Office Name | Subbareddypalayam B.O |
| Pincodes | 600120 |
| Area | Subbareddypalayam |
| 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 | Vallur B.O |
| Pincodes | 600120 |
| Area | Vallur |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Tambaram |
| Postal Region | Chennai Region |
| District | Tiruvallur |
| State | Tamil Nadu |
| Telephone No. | Na |