India has been asking Pakistan to hand over 42 fugitives including Dawood Ibrahim but Islamabad has refused to cooperate, foreign minister S M Krishna told Rajya Sabha on Thursday. Replying to questions, he said a list of 42 fugitives both Indian and Pakistani nationals, including ones involved in the 1993 Mumbai series bomb blasts and the 26/11 terror attacks in Mumbai, has been given to Islamabad. Krishna said whatever evidence and dossier is given, Pakistan's refrain is that it is not enough and cannot be proven in court of law. He said Pakistan has denied presence of dreaded criminals like Dawood Ibrahim, Tiger Memon, Chota Shakeel and Lakhbir Singh who are among the Indian nationals in the list. “For Pakistani nationals, Pakistan has pointed to lack of extradition treaty and lack of evidence,” he said. “We have made 11 futile attempts with Pakistan to conclude an extradition treaty,” he said. Pakistan has not responded “positively to our proposals to conclude an extradition treaty,” he said. “We have been impressing upon Pakistan that it is in the interest of both countries that we enter into a treaty of extradition,” Krishna said. “Government is endeavoring to persuade Pakistan to develop a cooperative relationship with India.”