852131 is the PIN Code of Kariho, which is located in Supaul district, Bihar state.
Kariho Post Office is located at Kariho, Supaul of BIHAR state. It is a Branch 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 Kariho PO is 852131. This Postoffice falls under Saharsa postal division of the Bihar postal circle.