Around 5.55 pm saturday I was returning to home from coaching classes. On my way to home I suddenly noticed a bright spherical object of size of a tennis ball . It was emitting bright blue lights like that of neon lights. It was about 24 to 175 ft above the ground. It covered about 500 metres in less than 0.5 seconds. The object was flying over a drain and at moment I was in the bridge .The object suddenly disappeared above that drain . it couldn't have been a meteorite as it did'nt leave tails .