| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 1351 | Khap Punak Buzurg | Punak BO | 📍 841239 | Darauli | Branch Post Office |
| 1352 | Khap Siswa | English BO | 📍 841239 | Mairwa | Branch Post Office |
| 1353 | Khapkat | Bhikhpur BO | 📍 841408 | Bhagwanpur Hat | Branch Post Office |
| 1354 | Khapura Khanpur | Siktia BO | 📍 841244 | Maharajganj | Branch Post Office |
| 1355 | Kharauni | B.P.Ekderwsa BO | 📍 841243 | Nautan | Branch Post Office |
| 1356 | Kharaunti | Balaun BO | 📍 841244 | Guthani | Branch Post Office |
| 1357 | Khardara | Kandhpakar BO | 📍 841287 | Andar | Branch Post Office |
| 1358 | Khargi Chhap | Chhapmathia BO | 📍 841227 | Siwan | Branch Post Office |
| 1359 | Khargi Rampur | Zeradei SO | 📍 841245 | Ziradei | Post Office - PO |
| 1360 | Khariwar | Bherwania BO | 📍 841507 | Bhagwanpur Hat | Branch Post Office |
| 1361 | Kharkharia | Bishwar BO | 📍 841239 | Guthani | Branch Post Office |
| 1362 | Kharkharia | Lebhri BO | 📍 841239 | Mairwa | Branch Post Office |
| 1363 | Kharsara | Jalalpur BO | 📍 841233 | Daraundha | Branch Post Office |
| 1364 | Kharsara | Hussainganj SO | 📍 841237 | Hussainganj | Post Office - PO |
| 1365 | Khartari urf Hariram chak | Asaon SO | 📍 841287 | Andar | Post Office - PO |
| 1366 | Khawaspur | Kishunpura SO | 📍 841416 | Lakri Nabiganj | Post Office - PO |
| 1367 | Kheda chapra | Siktia BO | 📍 841244 | Maharajganj | Branch Post Office |
| 1368 | Kheduchhapra | Mahrajganj SO Siwan | 📍 841238 | Maharajganj | Post Office - PO |
| 1369 | kherai | Kherai BO | 📍 841231 | Andar | Branch Post Office |
| 1370 | Kherai Tola | Kherai BO | 📍 841231 | Andar | Branch Post Office |
| 1371 | Kherawa | Kherwa BO | 📍 841406 | Bhagwanpur Hat | Branch Post Office |
| 1372 | Kherawa East Tola | Kherwa BO | 📍 841406 | Bhagwanpur Hat | Branch Post Office |
| 1373 | Kherhai | Kherai BO | 📍 841231 | Andar | Branch Post Office |
| 1374 | Kherhwa | Kherwa BO | 📍 841406 | Bhagwanpur Hat | Branch Post Office |
| 1375 | Khilwa | Bkulari BO | 📍 841239 | Mairwa | Branch Post Office |
| 1376 | Khirauli | Balaun BO | 📍 841244 | Guthani | Branch Post Office |
| 1377 | Khirwa | Kauria BO | 📍 841406 | Bhagwanpur Hat | Branch Post Office |
| 1378 | Khizar Chak | Barhria SO | 📍 841232 | Barharia | Post Office - PO |
| 1379 | Khodaibari | Bakerganj SO | 📍 841286 | Hasanpura | Post Office - PO |
| 1380 | Khor | Keotalia BO | 📍 841234 | Darauli | Branch Post Office |
| 1381 | Khori Pakar | Basantpur SO Siwan | 📍 841406 | Basantpur | Post Office - PO |
| 1382 | Khori Pakar | Sohilpatti BO | 📍 841406 | Basantpur | Branch Post Office |
| 1383 | Khori Pakar Jaddi | Paltuhatta BO | 📍 841413 | Barharia | Branch Post Office |
| 1384 | Khori Pakar Nilami | Paltuhatta BO | 📍 841413 | Barharia | Branch Post Office |
| 1385 | Khrwa Yadav Tola | Kherwa BO | 📍 841406 | Bhagwanpur Hat | Branch Post Office |
| 1386 | Khudra | Dhanuti BO | 📍 841226 | Siwan | Branch Post Office |
| 1387 | Khudra | Pachlakhi BO | 📍 841436 | Siwan | Branch Post Office |
| 1388 | Khujwa | Khujhwa SO | 📍 841502 | Raghunathpur | Post Office - PO |
| 1389 | Khulasa | Madhopur BO | 📍 841413 | Goriakothi | Branch Post Office |
| 1390 | Khulasha | Madhopur BO | 📍 841413 | Barharia | Branch Post Office |
| 1391 | Khurmabad | Siwan HO | 📍 841226 | Siwan | Head Post Office - H |
| 1392 | Khusal Dumri | Marachhi BO | 📍 841434 | Lakri Nabiganj | Branch Post Office |
| 1393 | Kilpur | Kabirpur BO | 📍 841243 | Nautan | Branch Post Office |
| 1394 | Kilpur | Keelpur BO | 📍 841243 | Nautan | Branch Post Office |
| 1395 | Kilpur | K.Srirampur BO | 📍 841427 | Nautan | Branch Post Office |
| 1396 | Kishunpali | Krishnapali BO | 📍 841234 | Darauli | Branch Post Office |
| 1397 | Kishunpur Misrauli | Kpmishrauli BO | 📍 841245 | Ziradei | Branch Post Office |
| 1398 | Kishunpura | Chimanpura BO | 📍 841416 | Lakri Nabiganj | Branch Post Office |
| 1399 | Kishunpura | Kishunpura SO | 📍 841416 | Lakri Nabiganj | Post Office - PO |
| 1400 | Kishunpura | Guthni SO | 📍 841435 | Guthani | Post Office - PO |