843320 is the PIN Code of Dumharpatti, which is located in Sitamarhi district, Bihar state.
Dumharpatti Post Office is located at Dumharpatti, Sitamarhi 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 Dumharpatti PO is 843320. This Postoffice falls under Sitamarhi postal division of the Bihar postal circle.