852139 is the PIN Code of Laharnia, which is located in Supaul district, Bihar state.
Laharnia Post Office is located at Laharnia, 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 Laharnia PO is 852139. This Postoffice falls under Saharsa postal division of the Bihar postal circle.