Pa Ranjith and Identity Politics : A never ending saga

Almost all his films bring the idea of identity politics to the fore. While the directors shy away from getting 'too' political to avoid problems, Ranjith dives right into it with a clear mind. From his debut film 'Attakathi' to his upcoming 'Sarpetta Perumbarai' his films explored the plight of the marginalized without reducing them to poverty porn. His directorials Madras, Kaala, Kabali and his production Pariyerum Perumal brought dalit politics to the space that is predominantly occupied by the higher castes. Which film of Pa Ranjith shook your beliefs?