| Post Office | Ambattur |
| Division | Tambaram |
| Region | Chennai Region |
| Circle | Tamilnadu |
| Taluka | Ambattur |
| District | Tiruvallur |
| State | Tamil Nadu |
| Phone | 044-26245533 |
| Sub Office | NA |
| Head Office | NA |
| Pincode |
600053
|
| Post Office | Ambattur Indl Estate |
| Division | Tambaram |
| Region | Chennai Region |
| Circle | Tamilnadu |
| Taluka | Ambattur |
| District | Tiruvallur |
| State | Tamil Nadu |
| Phone | 044-26251243 |
| Sub Office | NA |
| Head Office | Ambattur H.O |
| Pincode |
600058
|
| Post Office | Andarkuppam |
| Division | Tambaram |
| Region | Chennai Region |
| Circle | Tamilnadu |
| Taluka | Ambattur |
| District | Tiruvallur |
| State | Tamil Nadu |
| Phone | NA |
| Sub Office | Manali New Town S.O |
| Head Office | Ambattur H.O |
| Pincode |
600103
|
| Post Office | Athipattu |
| Division | Tambaram |
| Region | Chennai Region |
| Circle | Tamilnadu |
| Taluka | Ambattur |
| District | Tiruvallur |
| State | Tamil Nadu |
| Phone | NA |
| Sub Office | Ambattur Indl Estate S.O |
| Head Office | Ambattur H.O |
| Pincode |
600058
|
| Post Office | Avadi Camp |
| Division | Tambaram |
| Region | Chennai Region |
| Circle | Tamilnadu |
| Taluka | Ambattur |
| District | Tiruvallur |
| State | Tamil Nadu |
| Phone | 044-26385092 |
| Sub Office | NA |
| Head Office | NA |
| Pincode |
600054
|
| Post Office | Avadi Iaf |
| Division | Tambaram |
| Region | Chennai Region |
| Circle | Tamilnadu |
| Taluka | Ambattur |
| District | Tiruvallur |
| State | Tamil Nadu |
| Phone | 044-26841239 |
| Sub Office | NA |
| Head Office | Avadi Camp H.O |
| Pincode |
600055
|