Islamabad - In a dramatic move, Prime Minister Syed Yousaf Raza Gilani on Wednesday sacked his Advisor on National Security Mehmud Ali Durrani for bypassing the Prime Minister on fundamental security matters. A Press release issued by the Prime Minister House said that Mehmud Ali Durrani has been sacked for his 'irresponsible behaviour for not taking Prime Minister and other stakeholders into confidence and lack of coordination on matters of national security'. Other sources however told TheNation that Durrani was sacked for his controversial statements to Indian media about the identity of Ajmal Amir Kasab, the lone suspect of 26/11 Mumbai attacks. His disclosures created a lot of confusion about Pakistan's stance on Mumbai incident. Sources further said that more heads could roll in the days to come as consequence of these developments that had forced Islamabad to confirm on Wednesday that Ajmal Amir Kasab was a Pakistani national, a confession dealing severe blow to the image and credibility of the PPP-led coalition government. Some officials from the Interior Ministry were still reluctant to concede that investigation launched in the light of Indian dossier had concluded to establish identity of Kasab because there was no information available about him on the NADRA databases. However a senior security official while sharing inside information with TheNation said that that Ajmal Kasab was one of few Pakistanis who were arrested by a an Indian security agency from Katmandu, Nepal. Prior to his present appointment as Prime Minister's Advisor, Mr Durrani, a career Pakistan Army officer who had retired as Major General and had served as Pakistan's Ambassador to USA from June 2006 to May 2008. He was picked up by the former President General (r) Pervez Musharraf to replace General Jehangir Karamat as Pakistan Ambassador to the USA. Mr Hussain Haqanni replaced Mr Durrani as Pakistan's Ambassador to the United State after the new elected PPP-led coalition government came into power. Even after his removal from the ambassadorial position, Mehmud Durrami is believed to have played key role in bringing Pervez Musharraf and late Benazir Bhutto closer in 2008. Before his sacking, he was still playing as a bridge between the US and President Asif Zardari. Born in 1941 in Abbottabad, Durrani had graduated from Pakistan Military Academy in 1961 and had served in command and instructional posts for about 16 years. From 1977 to 1982 he was Pakistan's Defence and Military Attache in Washington DC. He also served as Military Secretary to the President of Pakistan until 1986. Durrani was posted as the commander the 1st Armoured Division in Multan, and being the former Military Secretary to the President, persuaded the then Army Chief and President General Muhammad Zia-ul-Haq to witness the tank exercise in Bahawalpur desert on 17 August 1988, the day latter was killed in a C-130 crash. From 1992 to 1998, Durrani was the Chairman of the Pakistan Ordnance Factories Board, and had served as an advisor in the International Institute for Strategic Studies in London, which he served from 2001 to 2004. After retiring from the Pakistani Army, he was actively involved in the peace efforts between Pakistan and India. As part of a process sponsored by the United Nations, he also worked with former senior officials from the United States, Russia and Iran to find a peaceful resolution to the Afghan crisis. President Pervez Musharraf appointed Durrani as Pakistan Ambassador to the United States in June 2006, replacing another General Jehangir Karamat. They both belong to the Armoured Corps of Pakistan Army, with Durrani being the third Armoured Corps officer to be appointed Pakistan's ambassador at Washington DC, Lt-Gen Ejaz Azim being the first from the same Corps to hold that position during Gen Ziaul Haq and Reagan era. Durrani has authored several books and studies, including 'India and Pakistan: The Cost of Conflict and 'Benefits of Peace and Pakistan's Security Imperatives: year 2000 and Beyond'. Monitoring Desk adds: Talking to a private TV channel, a furious Prime Minister said that the step was taken due to Durrani's irresponsible behaviour. "His statements have brought a bad name for Pakistan," he added.