846009 is the PIN Code of Sonki, which is located in Darbhanga district, Bihar state.
Sonki Post Office is located at Sonki, Darbhanga 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 Sonki PO is 846009. This Postoffice falls under Darbhanga postal division of the Bihar postal circle.