He serves as a Minister for Health and Family Welfare of Tamil Nadu[1] since 7 May 2021.

He is DMK's youth wing deputy general secretary and loyal to M K Stalin.

In 2021 he was appointed minister for Health and Family Welfare of Tamil Nadu.

In July 2021, Subramanian gave his MLA hostel and a month's supply of groceries to a couple who worked as daily wagers to treat their daughter who ate bleach powder, mistaking it for milk powder in March 2021 and lost weight gradually.

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