| Office Name | Sisia B.O |
| Pincodes | 854108 |
| Area | Sisia |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sitalmani B.O |
| Pincodes | 855102 |
| Area | Sitalmani |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sitalpur B.O |
| Pincodes | 855117 |
| Area | Sitalpur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Kishanganj |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sohagmare B.O |
| Pincodes | 854331 |
| Area | Sohagmare |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Araria |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sohangaon B.O |
| Pincodes | 854327 |
| Area | Sohangaon |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Purnia |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sonadarhat B.O |
| Pincodes | 854329 |
| Area | Sonadarhat |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Araria |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sonali S.O |
| Pincodes | 855114 |
| Area | Sonali |
| Office Status | Sub Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | 06451-242027 |
| Office Name | Sonapur Bazar B.O |
| Pincodes | 854316 |
| Area | Sonapur Bazar |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Purnia |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sondeep B.O |
| Pincodes | 854204 |
| Area | Sondeep |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Purnia |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sontha S.O |
| Pincodes | 855115 |
| Area | Sontha |
| Office Status | Sub Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Kishanganj |
| State | Bihar |
| Telephone No. | 06456-242559 |
| Office Name | Sourajabar B.O |
| Pincodes | 854315 |
| Area | Sourajabar |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Purnia |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sourgaon B.O |
| Pincodes | 854318 |
| Area | Sourgaon |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Araria |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Southa B.O |
| Pincodes | 854325 |
| Area | Southa |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Purnia |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Srinagar B.O |
| Pincodes | 854304 |
| Area | Srinagar |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Purnia |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sripur B.O |
| Pincodes | 854205 |
| Area | Sripur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Purnia |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sudhani R.S. B.O |
| Pincodes | 854317 |
| Area | Sudhani R.S. |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sujapur B.O |
| Pincodes | 854115 |
| Area | Sujapur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sukhasan B.O |
| Pincodes | 854107 |
| Area | Sukhasan |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | Na |
| Office Name | T.M. Baghar B.O |
| Pincodes | 854113 |
| Area | T.M. Baghar |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Taiyabpur S.O |
| Pincodes | 855117 |
| Area | Taiyabpur |
| Office Status | Sub Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Kishanganj |
| State | Bihar |
| Telephone No. | 06459-235203 |