851127 is the PIN Code of Birpur, which is located in Bhojpur district, Bihar state.
Birpur Post Office is located at Birpur, 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 Birpur PO is 851127. This Postoffice falls under Begusarai postal division of the Bihar postal circle.