604405 is the PIN Code of Punnai, which is located in Tiruvannamalai district, Tamil Nadu state.
Punnai Post Office is located at Punnai, Tiruvannamalai of TAMIL NADU 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 Punnai PO is 604405. This Postoffice falls under Tiruvannamalai postal division of the Tamilnadu postal circle.