841405 is the PIN Code of Sadauwan, which is located in Gopalganj district, Bihar state.
Sadauwan Post Office is located at Sadauwan, Gopalganj 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 Sadauwan PO is 841405. This Postoffice falls under Siwan postal division of the Bihar postal circle.