855107 is the PIN Code of Sirsi, which is located in Patna district, Bihar state.
Sirsi Post Office is located at Sirsi, Kishanganj 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 Sirsi PO is 855107. This Postoffice falls under Purnea postal division of the Bihar postal circle.