174316 is the PIN Code of Diara, which is located in Una district, Himachal Pradesh state.
Diara Post Office is located at Diara, Una of HIMACHAL PRADESH 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 Diara PO is 174316. This Postoffice falls under Una postal division of the Himachal Pradesh postal circle.