| Office Name | Sarmastpur B.O |
| Pincodes | 843107 |
| Area | Sarmastpur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Muzaffarpur |
| Postal Region | Muzaffarpur |
| District | Muzaffarpur |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Sarmastpur B.O |
| Pincodes | 844501 |
| Area | Sarmastpur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Vaishali |
| Postal Region | Patna Hq |
| District | Vaishali |
| State | Bihar |
| Telephone No. | Na |