| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 601 | Kaleyanpur | Bemari BO | 📍 802154 | Behea | Branch Post Office |
| 602 | Kaleyanpur | Chaurasta Bihia SO | 📍 802154 | Behea | Post Office - PO |
| 603 | Kaleyanpur | Kalyanpur BO | 📍 802154 | Behea | Branch Post Office |
| 604 | Kaleyanpur | Sandaur BO | 📍 802154 | Behea | Branch Post Office |
| 605 | Kali Bali | Kakila BO | 📍 802158 | Jagdishpur | Branch Post Office |
| 606 | Kalianpur | Berath BO | 📍 802201 | Charpokhari | Branch Post Office |
| 607 | Kalyanpur | Chandawa SO | 📍 802312 | Udwant Nagar | Post Office - PO |
| 608 | kamalu Chak | Rajapur BO | 📍 802155 | Koilwar | Branch Post Office |
| 609 | Kamaria | Chilhar BO | 📍 802164 | Agiaon | Branch Post Office |
| 610 | Kamriaon | Kamariaon BO | 📍 802183 | Behea | Branch Post Office |
| 611 | Kanai | Thakuri BO | 📍 802207 | Charpokhari | Branch Post Office |
| 612 | Kanela | Birpur BO | 📍 802165 | Behea | Branch Post Office |
| 613 | Kaneli | Birpur BO | 📍 802165 | Behea | Branch Post Office |
| 614 | Kanhai Geyan Sinh | Kamariaon BO | 📍 802183 | Behea | Branch Post Office |
| 615 | Kanharpur | Sandesh SO | 📍 802164 | Sandesh | Post Office - PO |
| 616 | Kanpahari | Dulamchak- Chak Chaudhari BO | 📍 802208 | Sahar | Branch Post Office |
| 617 | Kanu Dih | Moapkalan BO | 📍 802222 | Tarari | Branch Post Office |
| 618 | Karanpura | Suhia BO | 📍 802165 | Shahpur | Branch Post Office |
| 619 | Karari | Dhobha Bazar BO | 📍 802156 | Arrah | Branch Post Office |
| 620 | Karath | Karath SO | 📍 802205 | Tarari | Post Office - PO |
| 621 | Karath | Kirhi BO | 📍 802205 | Tarari | Branch Post Office |
| 622 | Karath | Kurur BO | 📍 802205 | Tarari | Branch Post Office |
| 623 | Karath | Kushi BO | 📍 802205 | Tarari | Branch Post Office |
| 624 | Karath | Sakla Bazar BO | 📍 802205 | Tarari | Branch Post Office |
| 625 | Karath | Sonbarsa BO | 📍 802205 | Tarari | Branch Post Office |
| 626 | Karauniya | Ayar BO | 📍 802203 | Piro | Branch Post Office |
| 627 | Karbasin | Karbasin BO | 📍 802201 | Agiaon | Branch Post Office |
| 628 | Karbasin | Dulamchak- Chak Chaudhari BO | 📍 802208 | Sahar | Branch Post Office |
| 629 | Kari Sath | Karisath BO | 📍 802157 | Udwant Nagar | Branch Post Office |
| 630 | Kariman Chak | Deo BO | 📍 802209 | Tarari | Branch Post Office |
| 631 | Kariman ThakurKaDera Ditto | L.K.Dera BO | 📍 802112 | Shahpur | Branch Post Office |
| 632 | Karja | Umraonganj SO | 📍 802166 | Shahpur | Post Office - PO |
| 633 | Karja | Ramsahar BO | 📍 802311 | Barhara | Branch Post Office |
| 634 | Karkhiyan | Kamariaon BO | 📍 802183 | Behea | Branch Post Office |
| 635 | Karma Misir | Sara BO | 📍 802209 | Tarari | Branch Post Office |
| 636 | Karnamenpur | Karnamepur BO | 📍 802112 | Shahpur | Branch Post Office |
| 637 | Karnaul | Harpur BO | 📍 802128 | Garhani | Branch Post Office |
| 638 | Karra | Basantpur BO | 📍 802156 | Arrah | Branch Post Office |
| 639 | Karwa | Karwan BO | 📍 802312 | Arrah | Branch Post Office |
| 640 | Kasap | Bankat BO | 📍 802206 | Udwant Nagar | Branch Post Office |
| 641 | Kasap | Bichhiaon BO | 📍 802206 | Udwant Nagar | Branch Post Office |
| 642 | Kasap | Jamuaon Dihari BO | 📍 802206 | Udwant Nagar | Branch Post Office |
| 643 | Kasap | Kasap SO | 📍 802206 | Udwant Nagar | Post Office - PO |
| 644 | Kasap | Khopira BO | 📍 802206 | Udwant Nagar | Branch Post Office |
| 645 | Kaser | Barnaon BO | 📍 802203 | Piro | Branch Post Office |
| 646 | Kashi Dih | Sonbarsa BO | 📍 802207 | Charpokhari | Branch Post Office |
| 647 | Kashipur Chamari | Dilia BO | 📍 802201 | Agiaon | Branch Post Office |
| 648 | Kasmariya | Thakuri BO | 📍 802207 | Charpokhari | Branch Post Office |
| 649 | Kataibojh | Manudehari BO | 📍 802158 | Jagdishpur | Branch Post Office |
| 650 | Katar | Hasan Bazar SO | 📍 802204 | Piro | Post Office - PO |