Katra is Taluka (Tehsil) in Muzaffarpur district of Bihar state. Katra has 12 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 843321 | Bandpura PIN Code | Muzaffarpur | Katra | Branch Office |
| 843321 | Baraitha PIN Code | Muzaffarpur | Katra | Branch Office |
| 843321 | Basua PIN Code | Muzaffarpur | Katra | Branch Office |
| 843321 | Dhanaur PIN Code | Muzaffarpur | Katra | Branch Office |
| 843321 | Gangeya PIN Code | Muzaffarpur | Katra | Branch Office |
| 843321 | Harkhauli PIN Code | Muzaffarpur | Katra | Branch Office |
| 843321 | Katra Muzaffarpur PIN Code | Muzaffarpur | Katra | Sub Office |
| 843321 | Khangura PIN Code | Muzaffarpur | Katra | Branch Office |
| 843321 | Pahsaul PIN Code | Muzaffarpur | Katra | Branch Office |
| 843321 | Pindauli PIN Code | Muzaffarpur | Katra | Branch Office |
| 843321 | Shivdaspur PIN Code | Muzaffarpur | Katra | Branch Office |
| 843321 | Sonepur PIN Code | Muzaffarpur | Katra | Branch Office |