New Delhi, April 23 -- The Election Commission on Wednesday took "serious note" of Congress president Mallikarjun Kharge calling Prime Minister Narendra Modi a "terrorist" and issued him with a "stern notice", officials said. He has been asked to explain his stand within 24 hours, they said. The notice comes a day before polling in Tamil Nadu and West Bengal. Kharge on Tuesday accused Prime Minister Modi of "terrorising" political parties by misusing government machinery and central agencies to stifle the opposition, triggering strong reactions from the BJP, which attacked the opposition leader for calling Modi a "terrorist". Addressing a press conference in Chennai on Tuesday, Kharge initially referred to the prime minister as a "terrorist" while criticising the AIADMK's alliance with the BJP. Questioning how the AIADMK could justify partnering with Prime Minister Modi, the Congress president said, "How these AIADMK people, who themselves put the photo of Annadurai... how can they join with Modi? He is a terrorist... "He doesn't believe in equality. His party won't believe in equality and justice..." However, when asked by reporters to clarify the context of the remark, Kharge said he meant that the prime minister was "terrorising" the democratic fabric of the country....