| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 501 | Charrahiya | Turkaulia SO | 📍 845437 | Harsidhi | Post Office - PO |
| 502 | charwa | Raghunathpur BO | 📍 845433 | Ramgarhwa | Branch Post Office |
| 503 | Chatia | Chatia BO | 📍 845425 | Areraj | Branch Post Office |
| 504 | Chaube Tola Matalike Jogaulia | Bazitpur BO | 📍 845420 | Madhuban | Branch Post Office |
| 505 | Chaur Mangurha | Bhopatpur BO | 📍 845432 | Kotwa | Branch Post Office |
| 506 | chauradano | Chauradano SO | 📍 845302 | Bankatwa | Post Office - PO |
| 507 | Chauriya | Gawandra BO | 📍 845426 | Mehsi | Branch Post Office |
| 508 | Chhagraha | Bahuarawa BO | 📍 845456 | Sugauli | Branch Post Office |
| 509 | Chhapra Bahas | Chapra Bahas BO | 📍 845435 | Sugauli | Branch Post Office |
| 510 | Chhapra Bahbal | Sirsia Ganesh BO | 📍 845426 | Mehsi | Branch Post Office |
| 511 | Chhapra Bali | Bishambharapur BO | 📍 845413 | Kalyanpur | Branch Post Office |
| 512 | Chhapra Bhikhari | Chapra Bihari BO | 📍 845414 | Pakri Dayal | Branch Post Office |
| 513 | Chhapra Govind | Bans Ghat BO | 📍 845426 | Mehsi | Branch Post Office |
| 514 | Chhatauni Amar Part | Motihari Court SO | 📍 845401 | Motihari | Post Office - PO |
| 515 | Chhatauni Ram singh | Motihari Court SO | 📍 845401 | Motihari | Post Office - PO |
| 516 | Chheni Chhapra | Tetaria Factory SO | 📍 845436 | Tetaria | Post Office - PO |
| 517 | Chichurahia | Semra SO East Champaran | 📍 845435 | Banjaria | Post Office - PO |
| 518 | Chikni | Jokiyari BO | 📍 845305 | Raxaul | Branch Post Office |
| 519 | Chikni | Siswa Sounaha BO | 📍 845305 | Raxaul | Branch Post Office |
| 520 | Chikni | Champapur BO | 📍 845433 | Ramgarhwa | Branch Post Office |
| 521 | Chiljhapti urf Juajat | Sugaon BO | 📍 845456 | Sugauli | Branch Post Office |
| 522 | chintaha | Ahiraulia BO | 📍 845433 | Ramgarhwa | Branch Post Office |
| 523 | CHINTAMANPUR | Chintamanpur BO | 📍 845416 | Kalyanpur | Branch Post Office |
| 524 | Chintamanpur | Kataha BO | 📍 845426 | Mehsi | Branch Post Office |
| 525 | Chintamanpur | K.Hareram BO | 📍 845426 | Mehsi | Branch Post Office |
| 526 | Chintamanpur Bagwa | Bediban Madhuban BO | 📍 845416 | Chakia(Pipra) | Branch Post Office |
| 527 | Chintamanpur Bagwa | Chintamanpur BO | 📍 845416 | Chakia(Pipra) | Branch Post Office |
| 528 | Chiraia | Chiraiya SO | 📍 845415 | Chiraia | Post Office - PO |
| 529 | Chitaha | Semra SO East Champaran | 📍 845435 | Banjaria | Post Office - PO |
| 530 | Chitahi | Bhada Murli BO | 📍 845417 | Turkaulia | Branch Post Office |
| 531 | Chitahi | Jagiraha BO | 📍 845437 | Turkaulia | Branch Post Office |
| 532 | Chitranw | Baharupia BO | 📍 845437 | Turkaulia | Branch Post Office |
| 533 | Chiuntaha | Darmaha BO | 📍 845432 | Kotwa | Branch Post Office |
| 534 | chiutaha | Kushar BO | 📍 845437 | Turkaulia | Branch Post Office |
| 535 | Chorma | Chorma BO | 📍 845414 | Pakri Dayal | Branch Post Office |
| 536 | Dagraha | K.Hareram BO | 📍 845426 | Mehsi | Branch Post Office |
| 537 | Daini Math | Bakhari Mahesh BO | 📍 845413 | Kalyanpur | Branch Post Office |
| 538 | Dalpat Bishunpur | Chiraiya SO | 📍 845415 | Dhaka | Post Office - PO |
| 539 | Dalpat Bishunpur | Barharwa Siwan BO | 📍 845418 | Dhaka | Branch Post Office |
| 540 | DALPAT BISUNPUR | Dalpat Bishunpur BO | 📍 845427 | Dhaka | Branch Post Office |
| 541 | Damo Birti | Jagapakar BO | 📍 845411 | Harsidhi | Branch Post Office |
| 542 | Damodarpur | Damodarpur SO | 📍 845416 | Chakia(Pipra) | Post Office - PO |
| 543 | Damodarpur | Tikulia BO | 📍 845416 | Chakia(Pipra) | Branch Post Office |
| 544 | Damodarpur | Damodarpur Mathia BO | 📍 845425 | Areraj | Branch Post Office |
| 545 | Damodarpur | Mehsi SO | 📍 845426 | Mehsi | Post Office - PO |
| 546 | danahi | Barmashwa BO | 📍 845437 | Turkaulia | Branch Post Office |
| 547 | Danhi | Balua BO | 📍 845422 | Harsidhi | Branch Post Office |
| 548 | dariapur | Dariapur SO East Champaran | 📍 845417 | Turkaulia | Post Office - PO |
| 549 | Darmaha | Bakhari Mahesh BO | 📍 845413 | Kalyanpur | Branch Post Office |
| 550 | DARMAHA | Darmaha BO | 📍 845432 | Kesaria | Branch Post Office |