Ex -PCC President
Subramanian has held significant roles in the Puducherry Legislative Assembly: he served as Deputy Speaker of the 9th and 11th Assembly and as Speaker of the 10th Assembly.
He assumed office as Deputy Speaker on 12 December 2001, after being unanimously elected.
He also served as President of the Puducherry Pradesh Congress Committee from 4 March 2020 until 9 June 2023.
His electoral constituency (in recent affidavit) was Karaikal North.