| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 901 | Mohammadpur | Gangarghose BO | 📍 854315 | Baisi | Branch Post Office |
| 902 | Mohani | Madarghat BO | 📍 854330 | Kasba | Branch Post Office |
| 903 | Mohania Chakla | Mohania Chakla BO | 📍 854102 | Banmankhi | Branch Post Office |
| 904 | Mohankunda | Mohankunda BO | 📍 854326 | Purnia East | Branch Post Office |
| 905 | Mohanpur Istamrar | Rupauli BO | 📍 854204 | Rupauli | Branch Post Office |
| 906 | Mulkia | Dibra BO | 📍 854203 | Barhara | Branch Post Office |
| 907 | Murad Bagh | Garhbanaili SO | 📍 854325 | Kasba | Post Office - PO |
| 908 | Muradpur | Kishanganj SO | 📍 855107 | Baisa | Post Office - PO |
| 909 | Murajpur | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 910 | Mushari Tola | Bhawanipur Rajdham SO | 📍 854204 | Bhawanipur | Post Office - PO |
| 911 | Nagdehi | Belwa BO | 📍 854337 | Purnia East | Branch Post Office |
| 912 | Nageshwer nagar | Khuskibagh SO | 📍 854305 | Purnia East | Post Office - PO |
| 913 | Nahrakol | Talbari BO | 📍 854315 | Amour | Branch Post Office |
| 914 | Nand Gram | Dhamdaha SO | 📍 854205 | Dhamdaha | Post Office - PO |
| 915 | Nandania | Mirpur BO | 📍 855115 | Baisa | Branch Post Office |
| 916 | Naribhuna | Machhatta BO | 📍 854315 | Amour | Branch Post Office |
| 917 | Nathpur | Barhara Kothi SO | 📍 854203 | Barhara | Post Office - PO |
| 918 | Nathpur | Rupauli BO | 📍 854204 | Rupauli | Branch Post Office |
| 919 | Naulakhi | Banmankhi SO | 📍 854202 | Banmankhi | Post Office - PO |
| 920 | Naulakhi Milik | Banmankhi SO | 📍 854202 | Banmankhi | Post Office - PO |
| 921 | Nawabganj Pokharia | Puranaganj BO | 📍 854317 | Baisi | Branch Post Office |
| 922 | Naya Tola | Khuskibagh SO | 📍 854305 | Purnia East | Post Office - PO |
| 923 | Neamatpur | Baisi SO | 📍 854315 | Baisi | Post Office - PO |
| 924 | Neamatpur | Modho BO | 📍 855115 | Baisi | Branch Post Office |
| 925 | Neampur | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 926 | Neema Tola | Kasba SO Purnia | 📍 854330 | Kasba | Post Office - PO |
| 927 | Nehuri | Kishanganj SO | 📍 855107 | Baisa | Post Office - PO |
| 928 | Nemua | Baraidagah BO | 📍 854330 | Amour | Branch Post Office |
| 929 | New Amla Tola | Purnea Chowk SO | 📍 854304 | Purnia East | Post Office - PO |
| 930 | Nifatpur | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 931 | Nijgehuma | Ahilgaon BO | 📍 854327 | Jalalgarh | Branch Post Office |
| 932 | Nikandaha | Dhanpatganj BO | 📍 855115 | Baisa | Branch Post Office |
| 933 | Nikhrail | Mahalbari BO | 📍 854326 | Dagarua | Branch Post Office |
| 934 | Nipania | Nipania BO | 📍 854202 | Barhara | Branch Post Office |
| 935 | Nipania Milik | Nipania BO | 📍 854202 | Barhara | Branch Post Office |
| 936 | Nirpur | Nirpur BO | 📍 854203 | Dhamdaha | Branch Post Office |
| 937 | Nirpur Milik | Nirpur BO | 📍 854203 | Dhamdaha | Branch Post Office |
| 938 | Nirpur Milik | Dobha BO | 📍 854204 | Rupauli | Branch Post Office |
| 939 | Nisandra | Machhatta BO | 📍 854315 | Amour | Branch Post Office |
| 940 | Nisandra | Mahalbari BO | 📍 854326 | Dagarua | Branch Post Office |
| 941 | Nishara | Jalalgarh SO | 📍 854327 | Jalalgarh | Post Office - PO |
| 942 | Nitandar | Amour BO | 📍 854315 | Amour | Branch Post Office |
| 943 | Nonia Tola | Bhawanipur Rajdham SO | 📍 854204 | Bhawanipur | Post Office - PO |
| 944 | Noon Tola | Purnea City SO | 📍 854302 | Purnia East | Post Office - PO |
| 945 | Ochhepur | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 946 | Old Power Grid | Purnea Polyticnic SO | 📍 854303 | Purnia East | Post Office - PO |
| 947 | Pachkonia | Baisi SO | 📍 854315 | Amour | Post Office - PO |
| 948 | Pagla | Sirsi BO | 📍 855107 | Baisa | Branch Post Office |
| 949 | Pahoria | Amour BO | 📍 854315 | Baisi | Branch Post Office |
| 950 | Pakaria | Mahamadia BO | 📍 854330 | Kasba | Branch Post Office |