| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 801 | Maheshpur | Belwa BO | 📍 854337 | Purnia East | Branch Post Office |
| 802 | Maheshua | Bishanpur BO | 📍 854315 | Amour | Branch Post Office |
| 803 | Mahiarpur | Jalalgarh SO | 📍 854327 | Jalalgarh | Post Office - PO |
| 804 | Mahingaon | Hafania BO | 📍 854315 | Amour | Branch Post Office |
| 805 | Mahnaro Istamrar | Kishanganj SO | 📍 855107 | Baisa | Post Office - PO |
| 806 | Mahsail | Angarhat BO | 📍 855115 | Baisa | Branch Post Office |
| 807 | Mahthaur | Mathour BO | 📍 854330 | Kasba | Branch Post Office |
| 808 | Maikhand Milik | Nipania BO | 📍 854202 | Barhara | Branch Post Office |
| 809 | Maikhand Milik | Barhara Kothi SO | 📍 854203 | Barhara | Post Office - PO |
| 810 | Maina Bhagwan Milik | Rupauli BO | 📍 854204 | Rupauli | Branch Post Office |
| 811 | Maini | Chapahari BO | 📍 854101 | Rupauli | Branch Post Office |
| 812 | Maitra | Bishanpur BO | 📍 854315 | Amour | Branch Post Office |
| 813 | Majgawan | Majgama BO | 📍 854330 | Dagarua | Branch Post Office |
| 814 | Majhaili | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 815 | Majhaili | Belwa BO | 📍 854337 | Purnia East | Branch Post Office |
| 816 | Majhgaon | Angarhat BO | 📍 855115 | Baisa | Branch Post Office |
| 817 | Majhok | Piyajee BO | 📍 855107 | Baisa | Branch Post Office |
| 818 | Majhok | Runki BO | 📍 855107 | Baisi | Branch Post Office |
| 819 | Majhua | Majhua BO | 📍 854312 | Amour | Branch Post Office |
| 820 | Majhua | Baisi SO | 📍 854315 | Baisi | Post Office - PO |
| 821 | Majhua | Barsauni BO | 📍 854326 | Dagarua | Branch Post Office |
| 822 | Majhua Bhag | Baisi SO | 📍 854315 | Baisi | Post Office - PO |
| 823 | Majhua Bhag | Majhuakala BO | 📍 854330 | Amour | Branch Post Office |
| 824 | Majhua Fatehganj | Dhamdaha SO | 📍 854205 | Dhamdaha | Post Office - PO |
| 825 | Majhua Kalan | Majhuakala BO | 📍 854330 | Amour | Branch Post Office |
| 826 | Majhua Khurd | Majhuakala BO | 📍 854330 | Amour | Branch Post Office |
| 827 | Majhua Nankar | Majhuakala BO | 📍 854330 | Amour | Branch Post Office |
| 828 | Majhua Pemraj Milik | Burhia Dhankatta BO | 📍 854306 | Banmankhi | Branch Post Office |
| 829 | Majhua Pemraj Milik | Sarsi SO | 📍 854306 | Banmankhi | Post Office - PO |
| 830 | Majhwa | Bhogabhatgama BO | 📍 854337 | Purnia East | Branch Post Office |
| 831 | Majhwar | Majhwar BO | 📍 854113 | Baisi | Branch Post Office |
| 832 | Majra | Sahara BO | 📍 854303 | Krityanand Nagar | Branch Post Office |
| 833 | Majrahi | Machhatta BO | 📍 854315 | Amour | Branch Post Office |
| 834 | Makaili | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 835 | Makanpur | Machhatta BO | 📍 854315 | Amour | Branch Post Office |
| 836 | Makhnaha | Haripur Madi BO | 📍 854202 | Banmankhi | Branch Post Office |
| 837 | Makhnaha | Srinagar BO | 📍 854304 | Srinagar | Branch Post Office |
| 838 | Makhnaha Chakla | Haripur Madi BO | 📍 854202 | Banmankhi | Branch Post Office |
| 839 | Makhnaha Milik | Haripur Madi BO | 📍 854202 | Banmankhi | Branch Post Office |
| 840 | Makhnaha Nawabganj Chakla | Haripur Madi BO | 📍 854202 | Banmankhi | Branch Post Office |
| 841 | Mala | Baisi SO | 📍 854315 | Baisi | Post Office - PO |
| 842 | Maldiha | Barhara Kothi SO | 📍 854203 | Barhara | Post Office - PO |
| 843 | Maldiha | Maldiha BO | 📍 854203 | Barhara | Branch Post Office |
| 844 | Malepali | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 845 | Malhara | Angarhat BO | 📍 855115 | Baisa | Branch Post Office |
| 846 | Malharia | Sourajabar BO | 📍 854315 | Baisi | Branch Post Office |
| 847 | Malharia | Garhbanaili SO | 📍 854325 | Kasba | Post Office - PO |
| 848 | Malharia Beat No | Garhbanaili SO | 📍 854325 | Kasba | Post Office - PO |
| 849 | Malhna | Hafania BO | 📍 854315 | Amour | Branch Post Office |
| 850 | Mali | Sripur BO | 📍 854205 | Dhamdaha | Branch Post Office |