Osaon is located in the district of Rohtas, Bihar. The pincode of Osaon is 821309. The area "Osaon" lies under takula of Dehri On Sone and has a Branch Office. Osaon comes under the head office Sasaram. The postal division for pin code 821309 is Rohtas.
| Area | Osaon |
| Pincode | 821309 |
| Taluka or Tehsil | Dehri On Sone |
| District | Rohtas |
| State | Bihar |
| Office Status | Branch Office |
| Postal Division | Rohtas |
| Postal Region | Patna HQ |
| Sub Office | Kachhwa (Rohtas) |
| Head Office | Sasaram |
| Contact Address | Postmaster, Post Office Osaon (Branch Office), Dehri On Sone, Bihar, India, Pin Code: 821309 |
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 821309 | Amaura pin code | Rohtas | Dehri On Sone | Branch Office |
| 821309 | B Kaithi pin code | Rohtas | Nasriganj | Branch Office |
| 821309 | Danwar pin code | Rohtas | Dehri On Sone | Branch Office |
| 821309 | Dhanhara pin code | Rohtas | Dehri On Sone | Branch Office |
| 821309 | Kachhwa Rohtas pin code | Rohtas | Nasriganj | Sub Office |
| 821309 | Osaon pin code | Rohtas | Dehri On Sone | Branch Office |
| 821309 | Parsar pin code | Rohtas | Dehri On Sone | Branch Office |
| 821309 | Samahuta pin code | Rohtas | Nasriganj | Branch Office |
Note: While we try to make the pincode data as accurate as possible, sometimes there might be inaccuracy in data. Please feel free and point it out in the below comment section.