603403 is the PIN Code of Thandarai, which is located in Tiruvallur district, Tamil Nadu state.
Thandarai Post Office is located at Thandarai, Kanchipuram 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 Thandarai PO is 603403. This Postoffice falls under Kanchipuram postal division of the Tamilnadu postal circle.