| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 51 | Babhangawan | Bahora BO | 📍 854306 | Kasba | Branch Post Office |
| 52 | Babhani | Babhani BO | 📍 855105 | Dagarua | Branch Post Office |
| 53 | Babhanpura | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 54 | Badla | Kasba SO Purnia | 📍 854330 | Kasba | Post Office - PO |
| 55 | Bag Dob | Amour BO | 📍 854315 | Baisi | Branch Post Office |
| 56 | Bagan Tola | Purnea City SO | 📍 854302 | Purnia East | Post Office - PO |
| 57 | Bagdahar | Chandidoria BO | 📍 854315 | Amour | Branch Post Office |
| 58 | Baghmara | Parora BO | 📍 854304 | Krityanand Nagar | Branch Post Office |
| 59 | Baghua | Amour BO | 📍 854315 | Amour | Branch Post Office |
| 60 | Baghua | Jalalgarh SO | 📍 854327 | Jalalgarh | Post Office - PO |
| 61 | Baghua Gachh | Amour BO | 📍 854315 | Amour | Branch Post Office |
| 62 | Baghua Kola | Amour BO | 📍 854315 | Amour | Branch Post Office |
| 63 | Bahadura | Bahdura BO | 📍 854204 | Rupauli | Branch Post Office |
| 64 | Bahadurpur | Harda BO | 📍 854303 | Purnia East | Branch Post Office |
| 65 | Bahadurpur | Dabhara BO | 📍 854311 | Dagarua | Branch Post Office |
| 66 | Bahadurpur | Amour BO | 📍 854315 | Amour | Branch Post Office |
| 67 | Bahadurpur | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 68 | Bahadurpur Khan Jahan | Harda BO | 📍 854303 | Purnia East | Branch Post Office |
| 69 | Bahora | Sarsi SO | 📍 854306 | Banmankhi | Post Office - PO |
| 70 | Bahuti | Dobha BO | 📍 854204 | Rupauli | Branch Post Office |
| 71 | Bairbana | Barhara Kothi SO | 📍 854203 | Barhara | Post Office - PO |
| 72 | Bairgachhi | Baisi SO | 📍 854315 | Baisi | Post Office - PO |
| 73 | Bairia | Mehdi BO | 📍 854204 | Rupauli | Branch Post Office |
| 74 | Bairia | Kanharia BO | 📍 854315 | Baisi | Branch Post Office |
| 75 | Bairma | Balla BO | 📍 854204 | Rupauli | Branch Post Office |
| 76 | Baisa | Rautahat BO | 📍 854315 | Baisa | Branch Post Office |
| 77 | Baisa | Garhbanaili SO | 📍 854325 | Kasba | Post Office - PO |
| 78 | Baisi | Baisi SO | 📍 854315 | Baisi | Post Office - PO |
| 79 | Baisi | Baisi SO | 📍 854315 | Baisi | Post Office - PO |
| 80 | Baismara | Runki BO | 📍 855107 | Baisa | Branch Post Office |
| 81 | Bajardih | Asja Mobaiya BO | 📍 854315 | Baisi | Branch Post Office |
| 82 | bajrangpuri | Purnea Chowk SO | 📍 854304 | Purnia East | Post Office - PO |
| 83 | Bakaunia | Tolikola BO | 📍 854330 | Amour | Branch Post Office |
| 84 | Bakharia | Baisi SO | 📍 854315 | Baisi | Post Office - PO |
| 85 | Bakuakol | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 86 | Balarpur | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 87 | Balia | Balla BO | 📍 854204 | Rupauli | Branch Post Office |
| 88 | Balia | Kharaiya BO | 📍 854315 | Amour | Branch Post Office |
| 89 | Balia | Majhuakala BO | 📍 854330 | Baisi | Branch Post Office |
| 90 | Baliamani | Dhusmalhat BO | 📍 855107 | Baisa | Branch Post Office |
| 91 | Baliamani Kamaldah | Dhusmalhat BO | 📍 855107 | Baisa | Branch Post Office |
| 92 | Baliatoli | Dhusmalhat BO | 📍 855107 | Baisa | Branch Post Office |
| 93 | Baliharpur | Dhusmalhat BO | 📍 855107 | Baisa | Branch Post Office |
| 94 | Balu Tola | Purnea City SO | 📍 854302 | Purnia East | Post Office - PO |
| 95 | Balu Tola | Kasba SO Purnia | 📍 854330 | Kasba | Post Office - PO |
| 96 | Balua | Garhiyabalua BO | 📍 854304 | Srinagar | Branch Post Office |
| 97 | Balua | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 98 | Balua | Jhawari BO | 📍 854330 | Amour | Branch Post Office |
| 99 | Balua Kachhari | Balua Kachhari BO | 📍 854201 | Banmankhi | Post Office - PO |
| 100 | BALUWATOLI | Kharaiya BO | 📍 854315 | Amour | Branch Post Office |