854311 is the PIN Code of Gairki, which is located in Araria district, Bihar state.
Gairki Post Office is located at Gairki, Araria 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 Gairki PO is 854311. This Postoffice falls under Purnea postal division of the Bihar postal circle.