| Post office | Sembarambakkam B.O |
| Pin code | 600123 |
| Office type | B.O |
| Taluk / city | Poonamallee |
| District name | Tiruvallur |
| State name | Tamil Nadu |
| Delivery status | Delivery |
| Division name | Tambaram |
| Region name | Chennai Region |
| Circle name | Tamilnadu |
| Related sub office | Nazarethpettai S.O |
| Related head office | Avadi Camp H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 600123 | Malayambakkam B.O | Poonamallee | Tiruvallur | Tamil Nadu |
| 600123 | Nazarethpettai S.O | Poonamallee | Tiruvallur | Tamil Nadu |
| 600123 | Sembarambakkam B.O | Poonamallee | Tiruvallur | Tamil Nadu |