TAMIL NADU, APRIL 11: PMK founder Dr S Ramadoss today met NDA head and DMK Chief, M Karunanidhi and apprised him of the on-going feud between him and Tamizhaga Rajiv Congress President Vazhapadi K Ramamurthy.Ramadoss told reporters here that it was upto Karunanidhi who was the NDA head in TamilNadu, to take appropriate action on the issue.After the March 28 NDA meeting here, TRC and PMK leader stacitly decided to bury the hatchet, but it once again resurfaced with Ramamurthy yesterday accusing PMK leader of "adopting double standards" and "instigating violence against the TRC".Strongly refuting Ramamurthy's suggestion that he was responsible for his losing in the last Lok Sabha polls, the PMK leader said but for his adjustment, Ramamurthy would never have got the Petroleum portfolio in the 1998 Vajpayee ministry.Presenting two former Vanniyar Sangam leaders and a General Secretary of a breakaway faction of PMK before the reporters, the PMK leader accused Ramamurthy of purveying `patently false' imaginary and `defamatory' information against him through a booklet.