| Place | Post Code |
|---|---|
| Amadih, Tirhut) | 845105 |
| Amhat, Tirhut) | 845105 |
| Amolba, Tirhut) | 845105 |
| Amwa, Tirhut) | 845105 |
| Ausani, Tirhut) | 845105 |
| Bairagi Sonbarsa, Tirhut) | 845105 |
| Bairaidih, Tirhut) | 845105 |
| Bairiya Kalan, Tirhut) | 845105 |
| Bairiya Khurd, Tirhut) | 845105 |
| Bakuli, Tirhut) | 845105 |
| Bakulia, Tirhut) | 845105 |
| Balgangwa, Tirhut) | 845105 |
| Balua, Tirhut) | 845105 |
| Bangaria, Tirhut) | 845105 |
| Bankatwa, Tirhut) | 845105 |
| Barba Kalan, Tirhut) | 845105 |
| Barba Khurd, Tirhut) | 845105 |
| Barganw, Tirhut) | 845101 |
| Barwa, Tirhut) | 845105 |
| Barwal, Tirhut) | 845105 |
| Batsara, Tirhut) | 845105 |
| Bauridouri, Tirhut) | 845105 |
| Behuarwa, Tirhut) | 845105 |
| Belahwa, Tirhut) | 845105 |
| Belwachakhni, Tirhut) | 845106 |
| Berai, Tirhut) | 845105 |
| Bhagajua, Tirhut) | 845101 |
| Bharauliya, Tirhut) | 845105 |
| Bharchhi, Tirhut) | 845105 |
| Bhinda Chaur, Tirhut) | 845105 |