In 2011 assembly elections in Tamil Nadu, Stalin M.K. of DMK won the Kolathur assembly constituency.
In 2006 assembly elections in Tamil Nadu, Subramanian, N. of AIADMK won the Kolathur assembly constituency.
In 2001 assembly elections in Tamil Nadu, Karuppayee Dr. A. of ADMK won the Kolathur assembly constituency.
In 1996 assembly elections in Tamil Nadu, Selvaraj Alias Kavithaipithan of DMK won the Kolathur assembly constituency.
In 1991 assembly elections in Tamil Nadu, C. Kulandaivelu of ADK won the Kolathur assembly constituency.