| Office Name | Sirsia B.O |
| Pincodes | 852101 |
| Area | Sirsia |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Saharsa |
| Postal Region | Muzaffarpur |
| District | Madhepura |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sirsia B.O |
| Pincodes | 841305 |
| Area | Sirsia |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Saran |
| Postal Region | Muzaffarpur |
| District | Saran |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sirsia B.O |
| Pincodes | 843324 |
| Area | Sirsia |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Sitamarhi |
| Postal Region | Muzaffarpur |
| District | Sitamarhi |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sirsia B.O |
| Pincodes | 815302 |
| Area | Sirsia |
| Office Status | Branch Post Office |
| Postal Circle | Jharkhand |
| Postal Division | Giridih |
| Postal Region | Ranchi |
| District | Giridh |
| State | Jharkhand |
| Telephone No. | Na |
| Office Name | Sirsia S.O |
| Pincodes | 271840 |
| Area | Sirsia |
| Office Status | Sub Post Office |
| Postal Circle | Uttar Pradesh |
| Postal Division | Bahraich |
| Postal Region | Gorakhpur |
| District | Shrawasti |
| State | Uttar Pradesh |
| Telephone No. | 05250-271268 |
| Office Name | Sirsia B.O |
| Pincodes | 274203 |
| Area | Sirsia |
| Office Status | Branch Post Office |
| Postal Circle | Uttar Pradesh |
| Postal Division | Deoria |
| Postal Region | Gorakhpur |
| District | Kushinagar |
| State | Uttar Pradesh |
| Telephone No. | Na |