851133 is the PIN Code of Hariharpur, which is located in Saran district, Bihar state.
Hariharpur Post Office is located at Hariharpur, Begusarai 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 Hariharpur PO is 851133. This Postoffice falls under Begusarai postal division of the Bihar postal circle.