| Office Name | Diyawan B.O |
| Pincodes | 801304 |
| Area | Diyawan |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Nalanda |
| Postal Region | Patna Hq |
| District | Nalanda |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Diyawan B.O |
| Pincodes | 230121 |
| Area | Diyawan |
| Office Status | Branch Post Office |
| Postal Circle | Uttar Pradesh |
| Postal Division | Pratapgarh |
| Postal Region | Allahabad |
| District | Pratapgarh |
| State | Uttar Pradesh |
| Telephone No. | Na |