| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 2101 | Nirmal Bigha | Salepur BO | 📍 801306 | Ekangarsarai | Branch Post Office |
| 2102 | Nirmal Bigha | Murgawan BO | 📍 803114 | Ben | Branch Post Office |
| 2103 | Nirmali Math | Rustampur BO | 📍 801303 | Islampur | Branch Post Office |
| 2104 | Nirpur | Sanda BO | 📍 801303 | Islampur | Branch Post Office |
| 2105 | Nirpur | Bind BO | 📍 803107 | Bind | Branch Post Office |
| 2106 | Nirpur | Bali Belchi BO | 📍 803110 | Chandi | Branch Post Office |
| 2107 | Nirpur | Nirpur BO | 📍 803111 | Silao | Branch Post Office |
| 2108 | Nirpur | Ganpura BO | 📍 803113 | Noorsarai | Branch Post Office |
| 2109 | Nirpur | Belaw BO | 📍 811101 | Bind | Branch Post Office |
| 2110 | Nirpur Khalsa | Barbigha SO | 📍 811101 | Bind | Post Office - PO |
| 2111 | Nisani Tola | Kharthua BO | 📍 803110 | Harnaut | Branch Post Office |
| 2112 | Nisanpura | Khushiyalpur BO | 📍 801306 | Ekangarsarai | Branch Post Office |
| 2113 | Nischal Ganj | Nishchalganj BO | 📍 801301 | Ekangarsarai | Branch Post Office |
| 2114 | Nischalganj | Nishchalganj BO | 📍 801301 | Ekangarsarai | Branch Post Office |
| 2115 | Nitai Chak | Bhathar SO | 📍 801307 | Tharthari | Post Office - PO |
| 2116 | Niymat Nagar | Dharahara BO | 📍 803111 | Silao | Branch Post Office |
| 2117 | Noanwan | Noawan BO | 📍 803107 | Asthawan | Branch Post Office |
| 2118 | Noawan | Noawan BO | 📍 803107 | Asthawan | Branch Post Office |
| 2119 | Nohsha | Gurusaranpu BO | 📍 803114 | Ben | Branch Post Office |
| 2120 | Nonhi | Nahub BO | 📍 803116 | Rajgir | Branch Post Office |
| 2121 | Noni dih | Madhar BO | 📍 803117 | Ben | Branch Post Office |
| 2122 | Nonia Bigha | Juniar BO | 📍 801301 | Ekangarsarai | Branch Post Office |
| 2123 | Nonia Bigha 1 | Khodaganj BO | 📍 801303 | Ekangarsarai | Branch Post Office |
| 2124 | Noniya Bigha | Chhariari Bujurg BO | 📍 801307 | Tharthari | Branch Post Office |
| 2125 | Noniya bigha | Satnag BO | 📍 803108 | Chandi | Branch Post Office |
| 2126 | Noniya Bigha | Dharampur BO | 📍 803120 | Noorsarai | Branch Post Office |
| 2127 | Noniya Bigha1 | Kapsima BO | 📍 801302 | Hilsa | Branch Post Office |
| 2128 | Noor Colony | Islampur SO Nalanda | 📍 801303 | Islampur | Post Office - PO |
| 2129 | Noori Chak | Ashrafpur BO | 📍 801305 | Nagar Nausa | Branch Post Office |
| 2130 | Noorsarai | Koklakchak BO | 📍 803113 | Noorsarai | Branch Post Office |
| 2131 | Noorsarai | Nanaura BO | 📍 803113 | Noorsarai | Branch Post Office |
| 2132 | Noorsarai | Nursarai SO | 📍 803113 | Noorsarai | Post Office - PO |
| 2133 | Nosra | Ganpura BO | 📍 803113 | Noorsarai | Branch Post Office |
| 2134 | Nouranga | Islampur SO Nalanda | 📍 801303 | Islampur | Post Office - PO |
| 2135 | Odhan Pura | Nimthu BO | 📍 803116 | Rajgir | Branch Post Office |
| 2136 | Ogirganj | Belchi Sharif BO | 📍 803107 | Asthawan | Branch Post Office |
| 2137 | Oknawan | Mighi Nagma BO | 📍 803111 | Bihar | Branch Post Office |
| 2138 | Old But Briksh | Islampur SO Nalanda | 📍 801303 | Islampur | Post Office - PO |
| 2139 | Ompur | Hussain Pur BO | 📍 803107 | Rahui | Branch Post Office |
| 2140 | Onda | Onda BO | 📍 803107 | Asthawan | Branch Post Office |
| 2141 | Onda B O | Onda BO | 📍 803107 | Asthawan | Branch Post Office |
| 2142 | Op | Ope BO | 📍 801301 | Ekangarsarai | Branch Post Office |
| 2143 | Ope | Ope BO | 📍 801301 | Ekangarsarai | Branch Post Office |
| 2144 | Oriawan | Oriyawan BO | 📍 801301 | Ekangarsarai | Branch Post Office |
| 2145 | Pacchaura | Pachoura BO | 📍 803110 | Harnaut | Branch Post Office |
| 2146 | Pach Bhaiya | Tetrawan BO | 📍 803216 | Bihar | Branch Post Office |
| 2147 | pach Mahla | Mahmuda BO | 📍 801303 | Islampur | Branch Post Office |
| 2148 | Pachamba | Karubigha BO | 📍 803116 | Rajgir | Branch Post Office |
| 2149 | Pachasa Par | Korawan BO | 📍 801302 | Hilsa | Branch Post Office |
| 2150 | Pachaura | Pachoura BO | 📍 803110 | Harnaut | Branch Post Office |