852131 is the PIN Code of Supaul, which is located in Supaul district, Bihar state.
Supaul Post Office is located at Supaul, Supaul of BIHAR state. It is a Sub Post Office. A Post Office (PO) / Dak Ghar is a facility in charge of sorting, processing, and delivering mail to recipients. POs are usually regulated and funded by the Government of India (GOI). Pin code of Supaul PO is 852131. This Postoffice falls under Saharsa postal division of the Bihar postal circle.