Alagiri had openly resented such hints saying he would not accept anyone else other than his father as leader.
The Madurai strong man, who is two years elder to Stalin, had a couple of months ago made no secret about his unhappiness over selection of party functionaries in his home turf, particularly in the youth wing headed by Stalin.
Alagiri had said his recommendations were neglected by the party leadership, an indirect attack on Stalin.
Noting that the PMK workers have joined the DMK because of shortcomings in that party, Karunanidhi hit out at PMK Chief S Ramadoss, for "unnecessarily" dragging him into controversies.
Ramadoss' recent attempt to bring together leaders of various castes on a common platform to campaign against inter-caste marriages involving Dalits drew sharp reaction from major political parties and Karunanidhi describing it as a "dangerous trend".
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