800001 is the PIN Code of Cr Building, which is located in Patna district, Bihar state.
CR Building Post Office is located at CR Building, Patna of BIHAR state. It is a Sub 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 CR Building PO is 800001. This Postoffice falls under Patna postal division of the Bihar postal circle.