| Office Name | Derwa B.O |
| Pincodes | 273402 |
| Area | Derwa |
| Office Status | Branch Post Office |
| Postal Circle | Uttar Pradesh |
| Postal Division | Gorakhpur |
| Postal Region | Gorakhpur |
| District | Gorakhpur |
| State | Uttar Pradesh |
| Telephone No. | Na |
| Office Name | Derwa S.O |
| Pincodes | 230128 |
| Area | Derwa |
| Office Status | Sub Post Office |
| Postal Circle | Uttar Pradesh |
| Postal Division | Pratapgarh |
| Postal Region | Allahabad |
| District | Pratapgarh |
| State | Uttar Pradesh |
| Telephone No. | 05341-267030 |