604206 is the PIN Code of Kalaiyur, which is located in Cuddalore district, Tamil Nadu state.
Kalaiyur Post Office is located at Kalaiyur, Villupuram 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 Kalaiyur PO is 604206. This Postoffice falls under Pondicherry postal division of the Tamilnadu postal circle.