| Post office | Arni CPT S.O |
| Pin code | 601101 |
| Office type | S.O |
| Taluk / city | Ponneri |
| District name | Tiruvallur |
| State name | Tamil Nadu |
| Delivery status | Delivery |
| Division name | Tambaram |
| Region name | Chennai Region |
| Circle name | Tamilnadu |
| Related sub office | NA |
| Related head office | Ambattur H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 601101 | Arni CPT S.O | Ponneri | Tiruvallur | Tamil Nadu |
| 601101 | Panayancheri B.O | Ponneri | Tiruvallur | Tamil Nadu |
| 601101 | Pondavakkam B.O | Ponneri | Tiruvallur | Tamil Nadu |
| 601101 | Rallapadi B.O | Ponneri | Tiruvallur | Tamil Nadu |