Senior Congress leader and Defence Minister A.K.Antony has blamed CPI-M for the recent incidents of political violence in Kerela. He told reporters on the sidelines of a function in Thiruvananthapuram that instead of doing a self-introspection over the incidents, CPI-M is making more mistakes. Antony said the left party should take steps to end this trend.Earlier, Antony inaugurated a seminar organised as part of an international Expo to be held by the Coir Board from the 12th of this month. The board will showcase all the technologies developed by it and its collaborators at the Expo.