803110 is the PIN Code of Kolawan, which is located in Nalanda district, Bihar state.
Kolawan Post Office is located at Kolawan, Nalanda 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 Kolawan PO is 803110. This Postoffice falls under Nalanda postal division of the Bihar postal circle.