| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 151 | Bajarahiya Tola | Rasulpur BO | 📍 841244 | Maharajganj | Branch Post Office |
| 152 | Bajarmara | Nabiganj BO | 📍 841407 | Lakri Nabiganj | Post Office - PO |
| 153 | Bajitpur | Goreakothi SO | 📍 841434 | Goriakothi | Post Office - PO |
| 154 | Bajrahia | Gohpur Bajrahia BO | 📍 841238 | Maharajganj | Branch Post Office |
| 155 | Bakhri | Bakhri BO | 📍 841203 | Siswan | Branch Post Office |
| 156 | Bakhtauli | Basantpur SO Siwan | 📍 841406 | Bhagwanpur Hat | Post Office - PO |
| 157 | Bakulari | Mairwa SO | 📍 841239 | Guthani | Post Office - PO |
| 158 | Bala | Kishunpura SO | 📍 841416 | Lakri Nabiganj | Post Office - PO |
| 159 | Balaha | Barkagaowan BO | 📍 841408 | Bhagwanpur Hat | Branch Post Office |
| 160 | Balaha | Lawa Rampur BO | 📍 841507 | Bhagwanpur Hat | Branch Post Office |
| 161 | Balahu | Balhu BO | 📍 841234 | Darauli | Branch Post Office |
| 162 | Balaipur | Bhaisakhal BO | 📍 841245 | Ziradei | Branch Post Office |
| 163 | Balapur | Sadarpur BO | 📍 841232 | Barharia | Branch Post Office |
| 164 | Balapur | Bhimpur BO | 📍 841404 | Barharia | Post Office - PO |
| 165 | Balau | Balaun BO | 📍 841244 | Maharajganj | Branch Post Office |
| 166 | Balawa | Sirisia BO | 📍 841413 | Nautan | Branch Post Office |
| 167 | Balchandhata | Pakwalia BO | 📍 841238 | Siwan | Branch Post Office |
| 168 | Baldhari | Sahuli BO | 📍 841286 | Hasanpura | Branch Post Office |
| 169 | Baldih | Jalalpur BO | 📍 841233 | Daraundha | Branch Post Office |
| 170 | Baletha | Gaushalaroad Siwan SO | 📍 841227 | Siwan | Post Office - PO |
| 171 | Bali | Hussainganj SO | 📍 841237 | Hussainganj | Post Office - PO |
| 172 | Bali punak | Punak BO | 📍 841239 | Darauli | Branch Post Office |
| 173 | Balia | Krishnapali BO | 📍 841234 | Darauli | Branch Post Office |
| 174 | Balia | Ballia BO | 📍 841237 | Andar | Branch Post Office |
| 175 | Balia | Balia BO | 📍 841506 | Maharajganj | Branch Post Office |
| 176 | Balia Dushadh Tola | Balia BO | 📍 841506 | Maharajganj | Branch Post Office |
| 177 | Balia Harijan Tola | Balia BO | 📍 841506 | Maharajganj | Branch Post Office |
| 178 | Balia Koiri Tola | Balia BO | 📍 841506 | Maharajganj | Branch Post Office |
| 179 | Balia Pandey Tola | Balia BO | 📍 841506 | Maharajganj | Branch Post Office |
| 180 | Balia Patti Jalalpur | Jalalpur BO | 📍 841506 | Maharajganj | Branch Post Office |
| 181 | Baliapatti | Jalalpur BO | 📍 841506 | Maharajganj | Branch Post Office |
| 182 | Balthara | Sohilpatti BO | 📍 841406 | Basantpur | Branch Post Office |
| 183 | Balua | Nautan BO | 📍 841243 | Nautan | Branch Post Office |
| 184 | Balua | Bhlua BO | 📍 841435 | Guthani | Branch Post Office |
| 185 | Balua Dindayalpur | Dindayalpur BO | 📍 841506 | Barharia | Branch Post Office |
| 186 | Balua Tola | Jaijore BO | 📍 841231 | Andar | Branch Post Office |
| 187 | Balua Tola | Sirisia BO | 📍 841413 | Nautan | Branch Post Office |
| 188 | Baluan | Balaun BO | 📍 841244 | Guthani | Branch Post Office |
| 189 | Baluhi | K.T.Bharouli BO | 📍 841404 | Daraundha | Post Office - PO |
| 190 | Balwa | Nautan BO | 📍 841243 | Nautan | Branch Post Office |
| 191 | Balwa | Sirisia BO | 📍 841243 | Mairwa | Branch Post Office |
| 192 | Bandhai | Darauli SO | 📍 841234 | Darauli | Post Office - PO |
| 193 | Bandhuhatta | Bhaisakhal BO | 📍 841245 | Ziradei | Branch Post Office |
| 194 | Baneya tola | Purandarpur BO | 📍 841439 | Goriakothi | Branch Post Office |
| 195 | Bangali Bharauli | K.T.Bharauli BO | 📍 841404 | Daraundha | Post Office - PO |
| 196 | Bangra | Chainpur SO Siwan | 📍 841203 | Siswan | Post Office - PO |
| 197 | Bangra | Bangra BO | 📍 841203 | Siswan | Branch Post Office |
| 198 | Bangra | Mahrajganj SO Siwan | 📍 841238 | Maharajganj | Post Office - PO |
| 199 | Bangra | Bangra BO | 📍 841238 | Maharajganj | Branch Post Office |
| 200 | Bangra | Jamuaon BO | 📍 841239 | Guthani | Branch Post Office |