| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 601 | Milki | Chhourahi BO | 📍 848202 | Chhorahi | Branch Post Office |
| 602 | Milki | Phaphaut BO | 📍 848202 | Khudabandpur | Branch Post Office |
| 603 | Milki | Chamtha BO | 📍 851111 | Bachhwara | Branch Post Office |
| 604 | Milki | Naipur BO | 📍 851128 | Mansurchak | Branch Post Office |
| 605 | Milki | Bhairwar BO | 📍 851129 | Begusarai | Branch Post Office |
| 606 | Milki | Sisauni Kothi BO | 📍 851130 | Dandari | Branch Post Office |
| 607 | Milki | Khanjahapur BO | 📍 851132 | Cheria Bariarpur | Branch Post Office |
| 608 | Minapur | Safapur BO | 📍 851129 | Matihani | Branch Post Office |
| 609 | Mir Shikar Chak | Lakhminia SO | 📍 851211 | Balia | Post Office - PO |
| 610 | Miralipur | Gokhle Nagar Bishanpur BO | 📍 851211 | Balia | Branch Post Office |
| 611 | Mirkalanpur | Rampur BO | 📍 848201 | Bakhri | Branch Post Office |
| 612 | Mirza Chak | Paharpur BO | 📍 851211 | Balia | Branch Post Office |
| 613 | Mirzapur | Tarabariarpur BO | 📍 848202 | Khudabandpur | Branch Post Office |
| 614 | Mirzapur | Maheshpur BO | 📍 851133 | Bhagwanpur | Branch Post Office |
| 615 | Mirzapur Anman | Teghra SO | 📍 851133 | Teghra | Post Office - PO |
| 616 | Mirzapur Banduar | Mirzapur Banduar SO | 📍 851129 | Begusarai | Post Office - PO |
| 617 | Mirzapur Banduar | Naktitola BO | 📍 851129 | Begusarai | Branch Post Office |
| 618 | Mirzapur Chand | Mirzapurchand BO | 📍 851112 | Barauni | Branch Post Office |
| 619 | Misarpur | Maheshpur BO | 📍 851133 | Bhagwanpur | Branch Post Office |
| 620 | Mobarakpur | Sahuri BO | 📍 851112 | Barauni | Branch Post Office |
| 621 | Mohaddi Chak | Sakarbasa BO | 📍 848202 | Khudabandpur | Branch Post Office |
| 622 | Mohammadpur | Mirzapur Banduar SO | 📍 851129 | Begusarai | Post Office - PO |
| 623 | Mohammadpur Baro | Baro SO | 📍 851118 | Barauni | Post Office - PO |
| 624 | Mohan Eghu | Mohanaigh BO | 📍 851129 | Begusarai | Branch Post Office |
| 625 | Mohanpur | Tarabariarpur BO | 📍 848202 | Khudabandpur | Branch Post Office |
| 626 | Mohanpur | Mohanpur BO | 📍 851131 | Begusarai | Branch Post Office |
| 627 | Mohanpur | Arjuntola Baryarpur BO | 📍 851132 | Cheria Bariarpur | Branch Post Office |
| 628 | Mohanpur | Bishanpur BO | 📍 851211 | Balia | Branch Post Office |
| 629 | Mohanpur | Dandari BO | 📍 851211 | Dandari | Branch Post Office |
| 630 | Mohanpur Barari | Mohanpur BO | 📍 851131 | Begusarai | Branch Post Office |
| 631 | Mohanwan Bagjhar | Chhourahi BO | 📍 848202 | Chhorahi | Branch Post Office |
| 632 | Mohibullah Chak | Bari Ballia BO | 📍 851211 | Balia | Branch Post Office |
| 633 | Mohiuddinpur | Mansurchak SO | 📍 851128 | Mansurchak | Post Office - PO |
| 634 | Mohmmadpur Baro | Baro SO | 📍 851118 | Barauni | Post Office - PO |
| 635 | Mohna | Ekamba BO | 📍 848204 | Chhorahi | Branch Post Office |
| 636 | Molhipur | Maheshpur BO | 📍 851133 | Bhagwanpur | Branch Post Office |
| 637 | Momina | Samsa BO | 📍 851128 | Mansurchak | Branch Post Office |
| 638 | Mominabad | Samsa BO | 📍 851128 | Mansurchak | Branch Post Office |
| 639 | Mominabad Arazi | Samsa BO | 📍 851128 | Mansurchak | Branch Post Office |
| 640 | Mortar | Malipur BO | 📍 848204 | Garhpura | Branch Post Office |
| 641 | Mosimpur | Manopur BO | 📍 851111 | Bachhwara | Branch Post Office |
| 642 | Mozafra | Muzaffara BO | 📍 851127 | Birpur | Branch Post Office |
| 643 | Mubarakpur urf Behta | Chandaur BO | 📍 851133 | Bhagwanpur | Branch Post Office |
| 644 | Mukhtiarpur | Mukhtiyarpur BO | 📍 851133 | Bhagwanpur | Branch Post Office |
| 645 | Muradpur | Fazilpur BO | 📍 851127 | Birpur | Branch Post Office |
| 646 | Murli Dih | Kumharson BO | 📍 848204 | Chhorahi | Branch Post Office |
| 647 | Musahri | Lakhminia Bazar BO | 📍 851211 | Balia | Branch Post Office |
| 648 | Musepur | Malipur BO | 📍 848204 | Garhpura | Branch Post Office |
| 649 | Nadel | Rampur BO | 📍 848201 | Bakhri | Branch Post Office |
| 650 | Nagargawan | Bhagatpur BO | 📍 851211 | Balia | Branch Post Office |