| Office Name | Durgapur S.O |
| Pincodes | 854105 |
| Area | Durgapur |
| Office Status | Sub Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | 06452-242301 |
| Office Name | Katihar Bara Bazar S.O |
| Pincodes | 854105 |
| Area | Katihar Bara Bazar |
| Office Status | Sub Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | 06452-222201 |
| Office Name | Katihar Colony S.O |
| Pincodes | 854105 |
| Area | Katihar Colony |
| Office Status | Sub Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | 06452-242301 |
| Office Name | Katihar H.O |
| Pincodes | 854105 |
| Area | Katihar |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | 06452-242301 |
| Office Name | Katihar Rs S.O |
| Pincodes | 854105 |
| Area | Katihar Rs |
| Office Status | Sub Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | 06452-222336 |