Find post office by pincode 731130 in district Birbhum in West Bengal, India using online India Pincode finder tool. There are around 9 post offices in district Birbhum, West Bengal, India with similar pincode 731130. All the post offices with pincode 731130 in Birbhum district of state West Bengal are listed above. Finding post office location by pincode is very easy, simply click on any one of the post offices listed above to get its details. For example, if you want to know post office details of Aligarh, just click on the post office name.