Islamabad- Pakistan Tehrik-e-Insaaf (PTI) Chief Imran Khan has said that initial talks between TTP and the government committees had been successful. Talking to journalists in Islamabad on Thursday he said the negotiations have made a clear distinction which Taliban groups desire peace and which do not. He expressed the hope that the talks process would succeed. To a question, Imran Khan said extension in ceasefire is imperative to achieve lasting peace.