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M. Karunanidhi was the uncle of Kalanithi Maran, a prominent media baron and politician. Maran's father, Murasoli Maran, was Karunanidhi's younger brother. Karunanidhi served as the Chief Minister of Tamil Nadu for five terms, spanning over three decades. He was a renowned poet, writer, and social reformer, known for his contributions to Tamil literature and politics.