| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 301 | Bariyarpur | Gauspur Bariarpur BO | 📍 844115 | Bidupur | Branch Post Office |
| 302 | Barkurwa | Balukaram SO | 📍 844113 | Vaishali | Post Office - PO |
| 303 | Barkurwa | Daudnagar BO | 📍 844113 | Vaishali | Branch Post Office |
| 304 | Barpipur | Bhagwanpur SO Vaishali | 📍 844114 | Bhagwanpur | Post Office - PO |
| 305 | Barua | Bidupur Rs SO | 📍 844502 | Raja Pakar | Post Office - PO |
| 306 | Barua Akhtiarpur | Hasanpur BO | 📍 844506 | Mahnar | Branch Post Office |
| 307 | Barwara | Sain BO | 📍 844111 | Paterhi Belsar | Branch Post Office |
| 308 | Basant Jahanabad | Ghataro SO | 📍 844119 | Lalganj | Post Office - PO |
| 309 | Basanta | Ghataro SO | 📍 844119 | Lalganj | Post Office - PO |
| 310 | Basantpur | Bidupur Rs SO | 📍 844502 | Raja Pakar | Post Office - PO |
| 311 | Basantpur | Desari SO | 📍 844504 | Desri | Post Office - PO |
| 312 | Basantpur Kakrahta Urf Milki | Sahdullpur Dhabouli BO | 📍 844502 | Bidupur | Branch Post Office |
| 313 | Basantpur Urf Mohiuddinpur | Basantpur BO | 📍 844504 | Jandaha | Branch Post Office |
| 314 | Basara | Rajapakar SO | 📍 844124 | Raja Pakar | Post Office - PO |
| 315 | Basara | Vaishali SO | 📍 844128 | Vaishali | Post Office - PO |
| 316 | Basarh | Chakramdas BO | 📍 844128 | Vaishali | Branch Post Office |
| 317 | Basarha | Basara BO | 📍 844124 | Raja Pakar | Branch Post Office |
| 318 | Basauli | Bidupur Rs SO | 📍 844502 | Raja Pakar | Post Office - PO |
| 319 | Basauli | Bishanpur Titara BO | 📍 844502 | Hajipur | Branch Post Office |
| 320 | Basdeopur | Basudeopur Chandel SO | 📍 844501 | Mahnar | Post Office - PO |
| 321 | Basokund | Vaishali SO | 📍 844128 | Vaishali | Post Office - PO |
| 322 | Baspi | Pastara BO | 📍 843114 | Bhagwanpur | Branch Post Office |
| 323 | Baspi | Patepur SO | 📍 843114 | Patepur | Post Office - PO |
| 324 | Baspi Khawajpur | Pastara BO | 📍 843114 | Bhagwanpur | Branch Post Office |
| 325 | Baspi Khawajpur | Patepur SO | 📍 843114 | Patepur | Post Office - PO |
| 326 | Basra urf Chak Ramdat | Amritpur BO | 📍 844113 | Vaishali | Branch Post Office |
| 327 | Basti | Chehrakala BO | 📍 844122 | Chehra Kalan | Branch Post Office |
| 328 | Batbarba | Kumar Bajitpur SO | 📍 843110 | Patepur | Post Office - PO |
| 329 | Bathna Mahodat | Bathna Mahodat BO | 📍 844118 | Chehra Kalan | Branch Post Office |
| 330 | Bathna Mahodat | Goraul SO | 📍 844118 | Goraul | Post Office - PO |
| 331 | Batraul | Lalganj Vaishali SO | 📍 844121 | Lalganj | Post Office - PO |
| 332 | Baudiha Tola | Aniruddha Belsar SO | 📍 844111 | Paterhi Belsar | Post Office - PO |
| 333 | Bawan Ghat | Singhara SO | 📍 844126 | Mahua | Post Office - PO |
| 334 | Bawan Ghat Math | Singhara SO | 📍 844126 | Mahua | Post Office - PO |
| 335 | Bazidpur | Harauli BO | 📍 844103 | Hajipur | Branch Post Office |
| 336 | Bazidpur Bhadwas | Hasapur Bhadwas BO | 📍 844122 | Mahua | Branch Post Office |
| 337 | Bazidpur Chak Kasturi | Bajitpur Kasturi BO | 📍 844509 | Sahdai Buzurg | Branch Post Office |
| 338 | Bazidpur Chak Usman | Mukundpur Bhat BO | 📍 844507 | Mahnar | Branch Post Office |
| 339 | Bazidpur Kaiju | Khesrahi BO | 📍 843114 | Patepur | Branch Post Office |
| 340 | Bazidpur Khurd | Murtuzapur BO | 📍 844505 | Jandaha | Branch Post Office |
| 341 | Bazidpur Korigaon | Bhagwanpur SO Vaishali | 📍 844114 | Bhagwanpur | Post Office - PO |
| 342 | Bazidpur Madhaul | Bhagwatpur Taraura BO | 📍 844122 | Mahua | Branch Post Office |
| 343 | Bazidpur Madhaul | Khopi BO | 📍 844507 | Jandaha | Branch Post Office |
| 344 | Bazidpur Malahi | Mukundpur Grahi BO | 📍 844504 | Jandaha | Branch Post Office |
| 345 | Bazidpur Saidat Majhlopur | Bajitpur Saidat BO | 📍 844503 | Bidupur | Branch Post Office |
| 346 | Bedauli | Lalganj Vaishali SO | 📍 844121 | Lalganj | Post Office - PO |
| 347 | Bedaulia | Aniruddha Belsar SO | 📍 844111 | Paterhi Belsar | Post Office - PO |
| 348 | Bedaulia | Sarai SO | 📍 844125 | Raja Pakar | Post Office - PO |
| 349 | Bedaulia | Thathan Buzurg BO | 📍 844125 | Hajipur | Branch Post Office |
| 350 | Begham Patti | Khajechand Chapra BO | 📍 844112 | Chehra Kalan | Branch Post Office |