841507 is the PIN Code of Bithuna, which is located in Siwan district, Bihar state.
Bithuna Post Office is located at Bithuna, 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 Bithuna PO is 841507. This Postoffice falls under Siwan postal division of the Bihar postal circle.