| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Raghunathpur, Tirhut) | 843315 |
| Postal/ZIP Codes in Semardah Kalan, Tirhut) | 843327 |
| Postal/ZIP Codes in Semardah Nankar, Tirhut) | 843327 |
| Postal/ZIP Codes in Sisaula Kalan, Tirhut) | 843315 |
| Postal/ZIP Codes in Sonaul Khan, Tirhut) | 843315 |
| Postal/ZIP Codes in Sonaul Sube, Tirhut) | 843315 |
| Postal/ZIP Codes in Supi, Tirhut) | 843315 |
| Postal/ZIP Codes in Suppi, Tirhut) | 843315 |