Find post office by pincode 843319 in district Sitamarhi in Bihar, India using online India Pincode finder tool. There are around 9 post offices in district Sitamarhi, Bihar, India with similar pincode 843319. All the post offices with pincode 843319 in Sitamarhi district of state Bihar 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 B.Behta, just click on the post office name.