Actor Nayanthara has joined the cast of superstar Rajinikanth’s much-awaited film, Dharman, directed by Ashwath Marimuthu. Southern beauty Nayanthara has come on board Rajinikanth’s ‘Dharman’. The director of the much-anticipated drama, Ashwath Marimuthu, welcomed Nayanthara to the team with a social media post.The. Nayanthara has officially joined Rajinikanth’s Dharman, directed by Ashwath Marimuthu and produced by Kamal Haasan’s Raaj Kamal Films International.