Details of Post office Harnathpur, SIWAN
- District: SIWAN
Contact Address: Postmaster, Post Office Harnathpur (BO), SIWAN, BIHAR, India (IN), Pin Code: 841504
- Pin Code 841504
- Post Office Harnathpur
- Post Office Type BO
- District SIWAN
- State BIHAR
- Postal Division Siwan Division
- Postal Region Muzaffarpur Region
- Postal Circle Bihar Circle