PinCode: 843327, M.Mandal Post Office, Riga, Sitamarhi, Bihar
| Post Office | M.Mandal |
| Post Office Status | Branch Post Office (Delivery) |
| PinCode | 843327
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| Telephone | |
| Town/Taluk | Riga |
| District | Sitamarhi |
| State | Bihar |
| Postal Division | Sitamarhi |
| Postal Region | Muzaffarpur |
| Postal Circle | Bihar |
List of Other Post Offices in Riga, Sitamarhi, Bihar