Which caste actor udhayanidhi Stalin belongs to?

Udhayanidhi Stalin belongs to the Vanniyar caste, which is classified as an Other Backward Class (OBC) in Tamil Nadu. He is the son of M.K. Stalin, the Chief Minister of Tamil Nadu and a prominent leader of the Dravida Munnetra Kazhagam (DMK) party. The DMK has historically championed the rights of various caste groups in its political agenda.