Bangladesh Cheif of Air Staff, Shiak Abdul Hannan today recalled the cooperation between India and Bangladesh in strengthening regional cooperation. He was addressing the newly commissioned flight cadets of the Indian Air Force, after reviewing the passing out parade at the Air Force Academy at Dundigal in Hyderabad.<br />'' <br />'' Mr Hannan asked them to continuously upgrade in tune with the changing technology relating to warfare. He also highlighted the historic occasion of Bangladesh airforce taking birth on Indian soil.<br />'' <br />''Earlier, he reviewed the Passing out parade and presented wings to the Passing out flight cadets.