It is that time of the year when the skies over Yelahanka, near Bangalore will thunder to the sound of dozens of jets from Air Forces and manufacturers from around the world. Almost the entire international aviation fraternity will be descending to India's Garden city to be a part of an event now considered Asia's premier air show.And its not just fancy flying from some of the world's leading aerobatic teams that will define Aero India 2013.