Nathnagar is Taluka (Tehsil) in Bhagalpur district of Bihar state. Nathnagar has 18 areas (postal offices). Nathnagar has a Sub Office and the PIN Code of Nathnagar is 812006.
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 812004 | Amribishapur PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812006 | Bhatoria PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812006 | Chaknarayanpur PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812004 | Champanagar PIN Code | Bhagalpur | Nathnagar | Sub Office |
| 812006 | Chandrabhanpur PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812006 | Chazabargaon PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812006 | Dariapur PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812006 | Gvbrain PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812006 | Haridaspur PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812006 | Harnathpur PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812005 | Kajraili PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812006 | Khaira PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812006 | Nathnagar PIN Code | Bhagalpur | Nathnagar | Sub Office |
| 812006 | Ratanganj PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812004 | Sahebganj PIN Code | Bhagalpur | Nathnagar | Sub Office |
| 812006 | Sajour PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812005 | Semaria PIN Code | Bhagalpur | Nathnagar | Branch Office |
| 812004 | Shankarpur PIN Code | Bhagalpur | Nathnagar | Branch Office |