Find post office by pincode 636503 in district Salem in Tamil Nadu, India using online India Pincode finder tool. There are around 8 post offices in district Salem, Tamil Nadu, India with similar pincode 636503. All the post offices with pincode 636503 in Salem district of state Tamil Nadu 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 Amaragundhi, just click on the post office name.