| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 2051 | Pipra Khurd | Pipra Naryan BO | 📍 841506 | Maharajganj | Branch Post Office |
| 2052 | pipra mathia | Daronda SO | 📍 841233 | Daraundha | Post Office - PO |
| 2053 | Piprahi | Pakwalia BO | 📍 841238 | Barharia | Branch Post Office |
| 2054 | Piprahia | Murena BO | 📍 841235 | Darauli | Branch Post Office |
| 2055 | Piprahia | Piprahiya BO | 📍 841245 | Ziradei | Branch Post Office |
| 2056 | Piprahia | Bhagwanpur Hat SO | 📍 841408 | Bhagwanpur Hat | Post Office - PO |
| 2057 | Pirari Khemraj | Tiyan BO | 📍 841231 | Andar | Branch Post Office |
| 2058 | Pirarthu Kalan | Sonbarsa BO | 📍 841241 | Daraundha | Branch Post Office |
| 2059 | Pirarthu Khurd | Sonbarsa BO | 📍 841241 | Daraundha | Branch Post Office |
| 2060 | Pokhari | Panjwar BO | 📍 841509 | Raghunathpur | Branch Post Office |
| 2061 | Pokhra | Balliapokhra BO | 📍 841238 | Maharajganj | Branch Post Office |
| 2062 | Pokhrera | Bilaspur BO | 📍 841239 | Mairwa | Branch Post Office |
| 2063 | Police station | Zeradei SO | 📍 841245 | Ziradei | Post Office - PO |
| 2064 | Pratappur | Sirisia BO | 📍 841243 | Mairwa | Branch Post Office |
| 2065 | Pratappur BO | Pratappur BO | 📍 841228 | Siwan | Branch Post Office |
| 2066 | Prathmik Sawasth Kendra Chaukihasan | Chaukihasan BO | 📍 841506 | Barharia | Branch Post Office |
| 2067 | Prathmik Sawasth Kendra Madhopur | Madhopur BO | 📍 841506 | Maharajganj | Branch Post Office |
| 2068 | Prathmik Vidyalay Dindayalpur | Dindayalpur BO | 📍 841506 | Barharia | Branch Post Office |
| 2069 | Prave Agro Petroliam Nayanpura | Bhartpura BO | 📍 841506 | Pachrukhi | Branch Post Office |
| 2070 | Primari Helth Centre | Zeradei SO | 📍 841245 | Ziradei | Post Office - PO |
| 2071 | Primari school | Piprahiya BO | 📍 841245 | Ziradei | Branch Post Office |
| 2072 | Profesher Colony | Siwan HO | 📍 841226 | Siwan | Head Post Office - H |
| 2073 | Punak | Punak BO | 📍 841239 | Mairwa | Branch Post Office |
| 2074 | Punak Buzurg | Punak BO | 📍 841239 | Darauli | Branch Post Office |
| 2075 | Purabtola Bhawrajpur | Bhwrajpur BO | 📍 841231 | Andar | Post Office - PO |
| 2076 | Puraina | Sarsar BO | 📍 841226 | Siwan | Branch Post Office |
| 2077 | Puraina | Mandrauli BO | 📍 841233 | Hasanpura | Branch Post Office |
| 2078 | Puraina | Bkulari BO | 📍 841239 | Mairwa | Branch Post Office |
| 2079 | Puraina | Rachhopali BO | 📍 841427 | Barharia | Branch Post Office |
| 2080 | Purandarpur | Purandarpur BO | 📍 841439 | Goriakothi | Branch Post Office |
| 2081 | Purani bazar Mairwa | Mairwa SO | 📍 841239 | Mairwa | Post Office - PO |
| 2082 | Purbi Harsar | P.Harsar BO | 📍 841233 | Daraundha | Post Office - PO |
| 2083 | Pustakalay Bhawan Ahir Tola | Bhartpura BO | 📍 841506 | Pachrukhi | Branch Post Office |
| 2084 | Pustkalay | Saraya Sah Mohamd BO | 📍 841506 | Goriakothi | Branch Post Office |
| 2085 | Qadir Chak | Jagdishpur Kothi BO | 📍 841243 | Nautan | Branch Post Office |
| 2086 | Qismat Surwalia | Barhria SO | 📍 841232 | Barharia | Post Office - PO |
| 2087 | R Tilauta | Rasulpur Tilouta BO | 📍 841233 | Daraundha | Branch Post Office |
| 2088 | Rachho Pali | Rachhopali BO | 📍 841427 | Barharia | Branch Post Office |
| 2089 | Raffipur | Rafipur BO | 📍 841286 | Hasanpura | Branch Post Office |
| 2090 | Rafipur | Rafipur BO | 📍 841286 | Hasanpura | Branch Post Office |
| 2091 | Ragar Tola | Harihans BO | 📍 841286 | Hussainganj | Branch Post Office |
| 2092 | Raghunath Lahar | Raghunathpur SO Siwan | 📍 841504 | Raghunathpur | Post Office - PO |
| 2093 | Raghunathpur | Dighwalia BO | 📍 841203 | Raghunathpur | Branch Post Office |
| 2094 | Raghunathpur | Barhria SO | 📍 841232 | Barharia | Post Office - PO |
| 2095 | Raghunathpur | Bahadur Bazar BO | 📍 841404 | Barharia | Post Office - PO |
| 2096 | Raghunathpur | Raghunathpur SO Siwan | 📍 841504 | Raghunathpur | Post Office - PO |
| 2097 | Rahia | Pipra BO | 📍 841244 | Maharajganj | Branch Post Office |
| 2098 | RAhimpur | Sirisia BO | 📍 841413 | Nautan | Branch Post Office |
| 2099 | Rahimpur | Semaria BO | 📍 841441 | Nautan | Branch Post Office |
| 2100 | Rahtawa | Belaon BO | 📍 841235 | Darauli | Branch Post Office |