Nawanagar is Taluka (Tehsil) in Buxar district of Bihar state. Nawanagar has 12 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 802129 | Atimi PIN Code | Buxar | Nawanagar | Branch Office |
| 802129 | Basaon Kalan PIN Code | Buxar | Nawanagar | Branch Office |
| 802129 | Belaon PIN Code | Buxar | Nawanagar | Branch Office |
| 802129 | Bisikala PIN Code | Buxar | Nawanagar | Branch Office |
| 802129 | Dhanbakhra PIN Code | Buxar | Nawanagar | Branch Office |
| 802131 | Gangauli PIN Code | Buxar | Nawanagar | Branch Office |
| 802129 | Girdharpur PIN Code | Buxar | Nawanagar | Branch Office |
| 802129 | Jigna PIN Code | Buxar | Nawanagar | Branch Office |
| 802129 | Karsar PIN Code | Buxar | Nawanagar | Branch Office |
| 802129 | Nagwan PIN Code | Buxar | Nawanagar | Branch Office |
| 802129 | Rupsagar PIN Code | Buxar | Nawanagar | Branch Office |
| 802129 | Sikraul PIN Code | Buxar | Nawanagar | Branch Office |