638661 is the PIN Code of Karaiyur, which is located in Erode district, Tamil Nadu state.
Karaiyur Post Office is located at Karaiyur, Erode 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 Karaiyur PO is 638661. This Postoffice falls under Tirupur postal division of the Tamilnadu postal circle.