700001 is the PIN Code of Treasury Building, which is located in Kolkata district, West Bengal state.
Treasury Building Post Office is located at Treasury Building, Kolkata of WEST BENGAL 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 Treasury Building PO is 700001. This Postoffice falls under Kolkata Central postal division of the West Bengal postal circle.