| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 101 | Babu ke Bhatkan | Narendrapur SO | 📍 841446 | Ziradei | Post Office - PO |
| 102 | Bada sikuwara | Chainpur Hata BO | 📍 841243 | Nautan | Branch Post Office |
| 103 | Badarjimi | Balaun BO | 📍 841244 | Guthani | Branch Post Office |
| 104 | Badarzamin | Bhagwanpur Hat SO | 📍 841408 | Bhagwanpur Hat | Post Office - PO |
| 105 | Badarzamin | Mirganj SO | 📍 841438 | Barharia | Post Office - PO |
| 106 | Badeepatti | Keelpur BO | 📍 841243 | Nautan | Branch Post Office |
| 107 | Badheya | Mania BO | 📍 841245 | Ziradei | Branch Post Office |
| 108 | Badlikuwar anganbari cetre | Baghauna BO | 📍 841223 | Siswan | Branch Post Office |
| 109 | Badlikuwar P H cetre | Baghauna BO | 📍 841223 | Siswan | Branch Post Office |
| 110 | Badram | Badram BO | 📍 841241 | Siwan | Branch Post Office |
| 111 | Badrawa | P.K.Rampur BO | 📍 841507 | Bhagwanpur Hat | Branch Post Office |
| 112 | Baga Bazar | Krom BO | 📍 841239 | Darauli | Branch Post Office |
| 113 | Bagaha | Baijubarhoga BO | 📍 841406 | Basantpur | Branch Post Office |
| 114 | Bagahi | Baghi BO | 📍 841406 | Basantpur | Branch Post Office |
| 115 | Bagali | Baijubarhoga BO | 📍 841406 | Basantpur | Branch Post Office |
| 116 | Bagara | Krom BO | 📍 841239 | Darauli | Branch Post Office |
| 117 | Bagau chaia | Madhopur BO | 📍 841232 | Barharia | Branch Post Office |
| 118 | Bagauchha | Pipra BO | 📍 841244 | Maharajganj | Branch Post Office |
| 119 | Bagauchha Khurd | Pipra BO | 📍 841244 | Maharajganj | Branch Post Office |
| 120 | Bagaura | Bagaura SO | 📍 841404 | Daraundha | Post Office - PO |
| 121 | Baghauna | Gangpur Siswan SO | 📍 841210 | Siswan | Post Office - PO |
| 122 | Baghauna | Baghauna BO | 📍 841223 | Siswan | Branch Post Office |
| 123 | Baghauni | Hussainganj SO | 📍 841237 | Hussainganj | Post Office - PO |
| 124 | Baghawna | Baghauna BO | 📍 841223 | Siswan | Branch Post Office |
| 125 | Baghawna Middle school | Baghauna BO | 📍 841223 | Siswan | Branch Post Office |
| 126 | Baghawna prathmik school | Baghauna BO | 📍 841223 | Siswan | Branch Post Office |
| 127 | Baghi | Rafipur BO | 📍 841286 | Hasanpura | Branch Post Office |
| 128 | Baghra | Khalishpur BO | 📍 841227 | Siwan | Branch Post Office |
| 129 | Bahadpur Bazar | Barhria SO | 📍 841232 | Barharia | Post Office - PO |
| 130 | Bahadurpur | Bahadur Bazar BO | 📍 841404 | Barharia | Post Office - PO |
| 131 | Bahadurpur | Bhagwanpur Hat SO | 📍 841408 | Bhagwanpur Hat | Post Office - PO |
| 132 | Bahadurpur | Sani Basantpur BO | 📍 841439 | Goriakothi | Branch Post Office |
| 133 | Bahelia | Nand Pur Amwari BO | 📍 841231 | Raghunathpur | Branch Post Office |
| 134 | Bahelia | Belaur BO | 📍 841239 | Guthani | Branch Post Office |
| 135 | Bahelia | Chitakhal BO | 📍 841435 | Guthani | Branch Post Office |
| 136 | Baheliya | Talli BO | 📍 841239 | Guthani | Branch Post Office |
| 137 | Bahgra | Bagaura SO | 📍 841404 | Daraundha | Post Office - PO |
| 138 | Bahgra | Nabiganj BO | 📍 841407 | Lakri Nabiganj | Post Office - PO |
| 139 | Bahopur | Mustfabad SO | 📍 841439 | Goriakothi | Post Office - PO |
| 140 | Bahuara qadir | Barhria SO | 📍 841232 | Barharia | Post Office - PO |
| 141 | Bahuchak | Langarpura BO | 📍 841239 | Mairwa | Branch Post Office |
| 142 | Bahuwara | Bahadur Bazar BO | 📍 841404 | Goriakothi | Post Office - PO |
| 143 | Baidapur | Bishunpura BO | 📍 841238 | Daraundha | Branch Post Office |
| 144 | Baidara | Sahuli BO | 📍 841286 | Hasanpura | Branch Post Office |
| 145 | Baiju Barhoga | Baijubarhoga BO | 📍 841406 | Basantpur | Branch Post Office |
| 146 | Baikunthpur | Machakna BO | 📍 841237 | Ziradei | Branch Post Office |
| 147 | Bairangipur | Sahpur SO | 📍 841243 | Nautan | Post Office - PO |
| 148 | Baisakhi | Hardia BO | 📍 841226 | Pachrukhi | Branch Post Office |
| 149 | Baishistnagar | Gangpur Siswan SO | 📍 841210 | Siswan | Post Office - PO |
| 150 | Bajarahiya | Rasulpur BO | 📍 841244 | Maharajganj | Branch Post Office |