| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 201 | Baidaula | Bhanpur Babu BO | 📍 272194 | Bhanpur | Branch Post Office |
| 202 | Baidauli Urf Dubaoli | Piraila Garib BO | 📍 272194 | Bhanpur | Branch Post Office |
| 203 | Baidaulia | Shivpur BO | 📍 272163 | Bhanpur | Branch Post Office |
| 204 | Baidauliya | Hiyaroopur BO | 📍 272127 | Harraiya | Branch Post Office |
| 205 | Baidauliya | Barahpur BO | 📍 272163 | Harraiya | Branch Post Office |
| 206 | Baidwalia | Dhirauli Babu BO | 📍 272127 | Bhanpur | Branch Post Office |
| 207 | Baihar | Captainganj SO Basti | 📍 272131 | Harraiya | Post Office - PO |
| 208 | Baijalpur | Bankata BO | 📍 272002 | Basti | Branch Post Office |
| 209 | Baijalpur | Turkipur BO | 📍 272128 | Harraiya | Branch Post Office |
| 210 | Baijalpur | Sringinari BO | 📍 272130 | Harraiya | Branch Post Office |
| 211 | Baijalpur | Kalwari SO Basti | 📍 272301 | Basti | Branch Post Office |
| 212 | Baijipur | Bankati Bazar SO | 📍 272123 | Basti | Post Office - PO |
| 213 | Baijipurwa | Mahson SO | 📍 272124 | Basti | Post Office - PO |
| 214 | Baijnath Jote | Mahson SO | 📍 272124 | Basti | Post Office - PO |
| 215 | Bainsaraja | Barahpur BO | 📍 272163 | Harraiya | Branch Post Office |
| 216 | Bairagal | Bairagal BO | 📍 272131 | Harraiya | Branch Post Office |
| 217 | Bairagpur | Jagdishpur BO | 📍 272130 | Harraiya | Branch Post Office |
| 218 | Bairi Khala | Bairikhala BO | 📍 272163 | Harraiya | Branch Post Office |
| 219 | Bairihwa | Paikolia SO | 📍 272181 | Harraiya | Post Office - PO |
| 220 | Bairihwa | Bargadwa BO | 📍 272190 | Bhanpur | Branch Post Office |
| 221 | Bairihwan | Basti HO | 📍 272001 | Basti | Head Post Office - H |
| 222 | Bairwa | Shivpur BO | 📍 272163 | Bhanpur | Branch Post Office |
| 223 | Bairwa | Lalganj Basti SO | 📍 272171 | Basti | Post Office - PO |
| 224 | Baishukhia | Bhawanipur BO | 📍 272124 | Basti | Branch Post Office |
| 225 | Baisnopur | Kalwari SO Basti | 📍 272301 | Basti | Branch Post Office |
| 226 | Baisoliya | Mahuwalakhanpur BO | 📍 272131 | Harraiya | Branch Post Office |
| 227 | Bajahiya | Ajgaiba Jungle BO | 📍 272163 | Bhanpur | Branch Post Office |
| 228 | Bajahra | Bajahara BO | 📍 272125 | Basti | Branch Post Office |
| 229 | Bajar Matia | Nagar Bazar SO | 📍 272302 | Basti | Post Office - PO |
| 230 | Bajha | Rayath SO | 📍 272148 | Basti | Post Office - PO |
| 231 | Bajha | Karah Pithia BO | 📍 272178 | Basti | Branch Post Office |
| 232 | Bakainiya | Bakainia BO | 📍 272165 | Basti | Branch Post Office |
| 233 | Bakainiya | Marwatia Baboo BO | 📍 272302 | Basti | Branch Post Office |
| 234 | Bakaspurwa | Rampur BO | 📍 272124 | Basti | Branch Post Office |
| 235 | Bakharia | Bankatia BO | 📍 272151 | Basti | Branch Post Office |
| 236 | Bakharia | Nagar Bazar SO | 📍 272302 | Basti | Post Office - PO |
| 237 | Baksar | Dewapar BO | 📍 272302 | Basti | Branch Post Office |
| 238 | Baksari | Lalpur BO | 📍 272130 | Harraiya | Branch Post Office |
| 239 | Balaipur | Baghnagar BO | 📍 272002 | Basti | Branch Post Office |
| 240 | Bale Deeh | Dasia BO | 📍 272150 | Bhanpur | Branch Post Office |
| 241 | Balgora | Delhwa BO | 📍 272301 | Basti | Branch Post Office |
| 242 | Balgora | Lakhanahat BO | 📍 272302 | Basti | Branch Post Office |
| 243 | Balli Patti | Dudhaura BO | 📍 272002 | Basti | Branch Post Office |
| 244 | Balu Dahda | Tharuapur BO | 📍 272129 | Harraiya | Branch Post Office |
| 245 | Balua Pacha Bheti | Jagdishpur BO | 📍 272130 | Harraiya | Branch Post Office |
| 246 | Balua Rudani | Jajupur BO | 📍 272127 | Harraiya | Branch Post Office |
| 247 | Baluwa | Mahson SO | 📍 272124 | Basti | Post Office - PO |
| 248 | Baluwa | Jajupur BO | 📍 272127 | Harraiya | Branch Post Office |
| 249 | Baluwa | Bemhari BO | 📍 272131 | Harraiya | Branch Post Office |
| 250 | Baluwa | Ojhaganj BO | 📍 272131 | Harraiya | Branch Post Office |