| Post Office | Shishabari |
| Division | Purnea |
| Region | Muzaffarpur |
| Circle | Bihar |
| Taluka | Kishanaganj |
| District | Kishanganj |
| State | Bihar |
| Phone | NA |
| Sub Office | Sontha S.O |
| Head Office | Katihar H.O |
| Pincode |
855115
|
| Post Office | Thiraniganj |
| Division | Purnea |
| Region | Muzaffarpur |
| Circle | Bihar |
| Taluka | Kishanaganj |
| District | Kishanganj |
| State | Bihar |
| Phone | NA |
| Sub Office | Bahadurganj S.O (Kishanganj) |
| Head Office | Katihar H.O |
| Pincode |
855101
|