| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 401 | Maujaha | Maujaha BO | 📍 852131 | Kishanpur | Branch Post Office |
| 402 | Maujaha | Maujaha | 📍 852134 | Supaul | Branch Post Office |
| 403 | Maun | Bhura BO | 📍 852139 | Tribeniganj | Branch Post Office |
| 404 | Maura | Raharia BO | 📍 852105 | Nirmali | Branch Post Office |
| 405 | Mehasimar | Bhairo Patti BO | 📍 852108 | Kishanpur | Branch Post Office |
| 406 | Mirjawa | Mirjawa BO | 📍 852139 | Tribeniganj | Branch Post Office |
| 407 | Mohanpur | Mohanpur BO | 📍 852137 | Chhatapur | Branch Post Office |
| 408 | Mohanpur | Balua Bazar SO | 📍 854339 | Basantpur | Post Office - PO |
| 409 | Mohar Rampur | Kumarkhand SO | 📍 852112 | Tribeniganj | Post Office - PO |
| 410 | Mohar Rampur Milik | Kumarkhand SO | 📍 852112 | Tribeniganj | Post Office - PO |
| 411 | Monga Sihol | Monga Sihol | 📍 852134 | Supaul | Branch Post Office |
| 412 | Mongarihaul | Mungraha BO | 📍 847452 | Marauna | Branch Post Office |
| 413 | Mongarihaul | Monga Sihol BO | 📍 852131 | Marauna | Branch Post Office |
| 414 | Morauna | Marauna BO | 📍 847408 | Marauna | Branch Post Office |
| 415 | Motipur | Motipur BO | 📍 852215 | Raghopur | Branch Post Office |
| 416 | Munshi piprahi | Banailipatti BO | 📍 854340 | Basantpur | Branch Post Office |
| 417 | Murli | Murli BO | 📍 852105 | Saraigarh Bhaptiyahi | Branch Post Office |
| 418 | Murli Milik | Gangapur BO | 📍 852105 | Saraigarh Bhaptiyahi | Branch Post Office |
| 419 | Nandan | Govinpur BO | 📍 852214 | Tribeniganj | Branch Post Office |
| 420 | Nandan Milik | Govinpur BO | 📍 852214 | Tribeniganj | Branch Post Office |
| 421 | Nanupatti Dhor | Sukhpur SO | 📍 852130 | Supaul | Post Office - PO |
| 422 | Naraenpur | Murli BO | 📍 852105 | Saraigarh Bhaptiyahi | Branch Post Office |
| 423 | Narahia | Piprakhurd BO | 📍 852131 | Supaul | Branch Post Office |
| 424 | Narahia | Narahi BO | 📍 852138 | Chhatapur | Branch Post Office |
| 425 | Narpat patti | Tarhi Bazar BO | 📍 852215 | Basantpur | Branch Post Office |
| 426 | Nathbari | Balua Bazar SO | 📍 854339 | Basantpur | Post Office - PO |
| 427 | Nathpatti | Balua Bazar SO | 📍 854339 | Basantpur | Post Office - PO |
| 428 | Nawabakhar | Nauwa Bakhar BO | 📍 852138 | Kishanpur | Branch Post Office |
| 429 | Nemua | Nemua BO | 📍 852130 | Supaul | Branch Post Office |
| 430 | Nirmali | Nirmali SO Supaul | 📍 847452 | Nirmali | Branch Post Office |
| 431 | Nirmali | Nirmali BO | 📍 852131 | Pipra | Branch Post Office |
| 432 | Nirmali | Sanskrit Nirmali BO | 📍 854339 | Basantpur | Branch Post Office |
| 433 | Nirmali | Nirmali | 📍 852134 | Supaul | Branch Post Office |
| 434 | Nonpara | Karjain Bazar SO | 📍 852215 | Saraigarh Bhaptiyahi | Post Office - PO |
| 435 | Norha | Jia Ram Raghopur SO | 📍 852111 | Raghopur | Post Office - PO |
| 436 | Orlaha | Orlaha Bazitpur BO | 📍 852139 | Tribeniganj | Branch Post Office |
| 437 | Pachgachhia | Manpour BO | 📍 847230 | Marauna | Branch Post Office |
| 438 | Pachgachhia | Dighiya BO | 📍 852131 | Kishanpur | Branch Post Office |
| 439 | Pachlehira | Manoharpatti BO | 📍 847452 | Marauna | Branch Post Office |
| 440 | Padampur | Karjain Bazar SO | 📍 852215 | Basantpur | Post Office - PO |
| 441 | Padum Nagar | Karjain Bazar SO | 📍 852215 | Raghopur | Post Office - PO |
| 442 | Pakri | Pakri BO | 📍 852218 | Tribeniganj | Branch Post Office |
| 443 | Panchpanduria | Balua Bazar SO | 📍 854339 | Basantpur | Post Office - PO |
| 444 | Pansahi | Orlaha Bazitpur BO | 📍 852139 | Tribeniganj | Branch Post Office |
| 445 | Parari | Lalpur BO | 📍 847452 | Marauna | Branch Post Office |
| 446 | Pariahi | Pariyahi BO | 📍 852137 | Chhatapur | Branch Post Office |
| 447 | Parkauli | Supaul SO | 📍 852131 | Supaul | Post Office - PO |
| 448 | Parkonch | Parikonch BO | 📍 847452 | Marauna | Branch Post Office |
| 449 | Parmanandpur | Goshpur BO | 📍 852215 | Basantpur | Branch Post Office |
| 450 | Parmanandpur | Karjain Bazar SO | 📍 852215 | Raghopur | Post Office - PO |