A former BJP Rajya Sabha member, Mr Ramaswamy was ailing for some time and was in the hospital.
He founded and edited the political magazine Thuglak and was fearless in criticising the ruling government in the state or at the centre.
A multi-faceted personality Mr Ramaswamy was also a play writer and a stage actor. He has also directed several movies and was also a screen play writer.
Mr Ramaswamy has acted in movies along with MG Ramachandran, Sivaji Ganesan, Jayalalithaa, Kamal Hassan, Rajinikanth and others.
He has written, directed and acted in over 20 Tamil plays which were performed over 5,000 times, acted in 180 movies scripted 14 movies, directed four films.
He is survived by wife, son and daughter.
He also tweeted:
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