The leader who led the Anti-Brahmin movement, worked for the Justice Party, and founded the Dravidar Kazhagam was E.V. Ramasami Naicker (commonly known as Periyar).
Additional Context:
E.V. Ramasami Naicker was a prominent social reformer and politician in Tamil Nadu.
He founded the Dravidar Kazhagam in 1944, advocating for social justice and rationalism.
The Justice Party, which he was associated with, later evolved into the Dravidian political parties of modern Tamil Nadu.
His Anti-Brahmin movement challenged caste-based discrimination and promoted Dravidian identity.