| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 551 | Chak Mahmuda | Takipur SO | 📍 841244 | Maharajganj | Post Office - PO |
| 552 | Chak Makhdum Alam | Hasanpura SO | 📍 841236 | Raghunathpur | Post Office - PO |
| 553 | Chak Manjan | Belsand BO | 📍 841413 | Barharia | Branch Post Office |
| 554 | Chak munda | Bankat BO | 📍 841422 | Bhagwanpur Hat | Branch Post Office |
| 555 | Chak Pararauna | Sawana BO | 📍 841438 | Barharia | Branch Post Office |
| 556 | Chak Pasram | Hakam BO | 📍 841227 | Pachrukhi | Branch Post Office |
| 557 | Chakarika Mathia | Rasulpur BO | 📍 841244 | Maharajganj | Branch Post Office |
| 558 | Chakarpan | Barhipurgop BO | 📍 841408 | Bhagwanpur Hat | Branch Post Office |
| 559 | Chakbirdi | Sahsrawan BO | 📍 841408 | Bhagwanpur Hat | Branch Post Office |
| 560 | chakdahawa | Jaijore BO | 📍 841231 | Andar | Branch Post Office |
| 561 | chakdahawa | Barhria SO | 📍 841232 | Barharia | Post Office - PO |
| 562 | chakdahawa | Shiopur Sakra BO | 📍 841245 | Ziradei | Branch Post Office |
| 563 | Chakdapur | Laxmiganj BO | 📍 841439 | Goriakothi | Branch Post Office |
| 564 | Chakdu Alam | Nadiwan BO | 📍 841231 | Raghunathpur | Branch Post Office |
| 565 | Chakia | Nadiwan BO | 📍 841231 | Raghunathpur | Branch Post Office |
| 566 | Chakia | Mairwa SO | 📍 841239 | Mairwa | Post Office - PO |
| 567 | Chakia | Bhlua BO | 📍 841435 | Guthani | Branch Post Office |
| 568 | Chakia | Chakia BO | 📍 841507 | Bhagwanpur Hat | Branch Post Office |
| 569 | Chakia tola | Chakia BO | 📍 841507 | Bhagwanpur Hat | Branch Post Office |
| 570 | Chakiya | Benusar BO | 📍 841227 | Siwan | Branch Post Office |
| 571 | Chakiya | Bhikhpur Bhgwanpur BO | 📍 841236 | Hasanpura | Branch Post Office |
| 572 | Chakmahamda | Siktia BO | 📍 841244 | Maharajganj | Branch Post Office |
| 573 | Chakra | Chakra BO | 📍 841226 | Siwan | Branch Post Office |
| 574 | Chakra | Nand Pur Amwari BO | 📍 841231 | Raghunathpur | Branch Post Office |
| 575 | Chakra BO | Chakra BO | 📍 841228 | Siwan | Branch Post Office |
| 576 | Chakri | Nand Pur Amwari BO | 📍 841231 | Raghunathpur | Branch Post Office |
| 577 | Chakri | Rukundipur BO | 📍 841238 | Daraundha | Branch Post Office |
| 578 | Chakri | Chakari BO | 📍 841435 | Darauli | Branch Post Office |
| 579 | Chaksultanpur | Raghunathpur SO Siwan | 📍 841504 | Raghunathpur | Post Office - PO |
| 580 | Chamauli | Rasulpur BO | 📍 841244 | Maharajganj | Branch Post Office |
| 581 | Chanauli | Chainpur BO | 📍 841439 | Goriakothi | Branch Post Office |
| 582 | Chanauli | Mustfabad SO | 📍 841439 | Goriakothi | Post Office - PO |
| 583 | Chanaur | Chanaur BO | 📍 841227 | Siwan | Branch Post Office |
| 584 | Chanchopali | Saraya Sah Mohamd BO | 📍 841506 | Goriakothi | Branch Post Office |
| 585 | Chand Parsa | Chandparsa BO | 📍 841240 | Siwan | Branch Post Office |
| 586 | Chand Pur Jalalpur | Jalalpur BO | 📍 841506 | Maharajganj | Branch Post Office |
| 587 | Chandan Chapra | Bahadur Bazar BO | 📍 841404 | Goriakothi | Post Office - PO |
| 588 | Chandan Chhapra | Barhria SO | 📍 841232 | Barharia | Post Office - PO |
| 589 | Chandauli | Patar BO | 📍 841502 | Andar | Branch Post Office |
| 590 | Chandauli Gangauli | Gaziapur BO | 📍 841245 | Ziradei | Branch Post Office |
| 591 | Chandaur | Trwa Parsia BO | 📍 841435 | Darauli | Branch Post Office |
| 592 | Chandpali | Kpmishrauli BO | 📍 841245 | Ziradei | Branch Post Office |
| 593 | Chandpali Chhawui Tola | Kpmishrauli BO | 📍 841245 | Ziradei | Branch Post Office |
| 594 | Chandpali Gulab mia ke Tola | Kpmishrauli BO | 📍 841245 | Ziradei | Branch Post Office |
| 595 | Chandpali mathia | Kpmishrauli BO | 📍 841245 | Ziradei | Branch Post Office |
| 596 | Chandpali Mishir tola | Kpmishrauli BO | 📍 841245 | Ziradei | Branch Post Office |
| 597 | Chandpali Nonia Chaper | Kpmishrauli BO | 📍 841245 | Ziradei | Branch Post Office |
| 598 | Chandpali Shivpur | Kpmishrauli BO | 📍 841245 | Ziradei | Branch Post Office |
| 599 | Chandparsa | Chandparsa BO | 📍 841240 | Hasanpura | Branch Post Office |
| 600 | Chandpur | Gangpur Siswan SO | 📍 841210 | Siswan | Post Office - PO |