Colurful performances by schoolchildren delighted President Obama as much as the crowd in general.Another military attraction was the display of Army version of indigenously developed surface-to-air Akash medium range missile and Weapon Locating Radar, both by Defence Research and Development Organisation (DRDO).Indian Army's laser-guided missile capable T-90 Bheeshma tank, infantry combat vehicle BMP-II (Sarath) followed by T-72 with Trawl too proved to be a major draw in the mechanised columns.