Dudnai is Taluka (Tehsil) in Goalpara district of Assam state. Dudnai has 15 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 783124 | Amjonga PIN Code | Goalpara | Dudnai | Branch Office |
| 783124 | Bandarshi PIN Code | Goalpara | Dudnai | Branch Office |
| 783124 | Chibonga PIN Code | Goalpara | Dudnai | Branch Office |
| 783122 | Damas PIN Code | Goalpara | Dudnai | Branch Office |
| 783122 | Damra PIN Code | Goalpara | Dudnai | Sub Office |
| 783124 | Darakh PIN Code | Goalpara | Dudnai | Branch Office |
| 783134 | Darragiri PIN Code | Goalpara | Dudnai | Sub Office |
| 783124 | Dudhnoi PIN Code | Goalpara | Dudnai | Sub Office |
| 783124 | Khusdhowa PIN Code | Goalpara | Dudnai | Branch Office |
| 783124 | Lela PIN Code | Goalpara | Dudnai | Branch Office |
| 783122 | Manikganj PIN Code | Goalpara | Dudnai | Branch Office |
| 783122 | Mendima PIN Code | Goalpara | Dudnai | Branch Office |
| 783134 | Rajasimla PIN Code | Goalpara | Dudnai | Branch Office |
| 783124 | Shiliuk PIN Code | Goalpara | Dudnai | Branch Office |
| 783124 | Upartala PIN Code | Goalpara | Dudnai | Branch Office |