| Post Office | Onnalvadi B.o |
| Division | Krishnagiri |
| Region | Coimbatore |
| Circle | Tamilnadu |
| Taluka | Hosur |
| District | Krishnagiri |
| State | Tamil Nadu |
| Phone | NA |
| Sub Office | Hosur S.O (Dharmapuri) |
| Head Office | Krishnagiri H.O |
| Pincode | 635109 |
The onnalvadi b.o post office, situated in hosur Taluka of tamil nadu district krishnagiri, operates under the krishnagiri Division. With its PIN code 635109, it connects to the Hosur S.O (Dharmapuri) and the Krishnagiri H.O, ensuring efficient postal services. Located within the coimbatore Region and the tamilnadu Circle, this post office plays a crucial role in supporting communication and logistics in the area.
onnalvadi b.o branch pincode is 635109
onnalvadi b.o branch phone number is NA
onnalvadi b.o branch Head Office is Krishnagiri H.O