He is also the grandnephew of DMK president and ex-chief minister of Tamil Nadu, M Karunanidhi.
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It is alleged that he extended these connections from his house in Boat Club, Adyar, to his brother's Sun TV channel office located in Anna Arivalayam in Teynampet.
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In May 2007 the Tamil daily newspaper, Dinakaran, owned by his brother Kalanidhi Maran, published a survey whose results declared that 70% of the people of Tamil Nadu favoured Karunanidhi's younger son M.K. Stalin as his likely successor as against 2% for Stalin's elder brother M.K. Azhagiri.
People in Southern Part of India and predominantly Tamil people who are fond of this language's taste use to name their descendants with this name, for instance, Dayanidhi Maran, Tamil Maran, ManiMaran, Marudhamaran, ElaMaran, Murasoli Maran etc.
T.R. Baalu is the Leader of DMK Parliamentary Party and is the only DMK member in the 30 member Joint Parliamentary Committee that probes the 2G Spectrum scam, where three members from DMK, namely A. Raja, Dayanidhi Maran and Kanimozhi are accused.