843302 is the PIN Code of Harnahiya, which is located in Sitamarhi district, Bihar state.
Harnahiya Post Office is located at Harnahiya, Sitamarhi 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 Harnahiya PO is 843302. This Postoffice falls under Sitamarhi postal division of the Bihar postal circle.