609503 is the PIN Code of Koothanur, which is located in Tiruvarur district, Tamil Nadu state.
Koothanur Post Office is located at Koothanur, Tiruvarur 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 Koothanur PO is 609503. This Postoffice falls under Mayiladuthurai postal division of the Tamilnadu postal circle.