| Post office | Oonaiyur B.O |
| Pin code | 622505 |
| Office type | B.O |
| Taluk / city | Tirumayam |
| District name | Pudukkottai |
| State name | Tamil Nadu |
| Delivery status | Delivery |
| Division name | Pudukkottai |
| Region name | Tiruchy |
| Circle name | Tamilnadu |
| Related sub office | Ramachandrapuram S.O (Pudukkottai) |
| Related head office | Pudukkottai H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 622505 | Hirudayapuram B.O | Thirumayam | Pudukkottai | Tamil Nadu |
| 622505 | Oonaiyur B.O | Tirumayam | Pudukkottai | Tamil Nadu |
| 622505 | Panangudi B.O | Tirumayam | Pudukkottai | Tamil Nadu |
| 622505 | Ramachandrapuram S.O (Pudukkottai) | Tirumayam | Pudukkottai | Tamil Nadu |