Find post office by pincode 231303 in district Mirzapur in Uttar Pradesh, India using online India Pincode finder tool. There are around 10 post offices in district Mirzapur, Uttar Pradesh, India with similar pincode 231303. All the post offices with pincode 231303 in Mirzapur district of state Uttar Pradesh 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 Bihsada, just click on the post office name.