Tandwa is Taluka (Tehsil) in Chatra district of Jharkhand state. Tandwa has 12 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 825321 | Bahera PIN Code | Chatra | Tandwa | Branch Office |
| 825321 | Chattibariatu PIN Code | Chatra | Tandwa | Branch Office |
| 825321 | Dhangada PIN Code | Chatra | Tandwa | Branch Office |
| 825321 | Kasiadih PIN Code | Chatra | Tandwa | Branch Office |
| 825321 | Khadaiya PIN Code | Chatra | Tandwa | Branch Office |
| 825321 | Manatu PIN Code | Chatra | Tandwa | Branch Office |
| 825321 | Pachra PIN Code | Chatra | Tandwa | Branch Office |
| 825321 | Peto PIN Code | Chatra | Tandwa | Branch Office |
| 825321 | Raham PIN Code | Chatra | Tandwa | Branch Office |
| 825321 | Salga PIN Code | Chatra | Tandwa | Branch Office |
| 825321 | Saradhu PIN Code | Chatra | Tandwa | Branch Office |
| 825321 | Tandwa Chatra PIN Code | Chatra | Tandwa | Sub Office |