841509 is the PIN Code of Panjwar, which is located in Siwan district, Bihar state.
Panjwar Post Office is located at Panjwar, Siwan 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 Panjwar PO is 841509. This Postoffice falls under Siwan postal division of the Bihar postal circle.