i was going to my college,then in the way i saw 4 trails but i didn't gave much attention to it but then near police bhavan,approximate coordinates 15.871362,74.516592 i saw 4 flying objects one was big others weer small . the big was boomerang shaped the others were to small to get their shape but they were surrounding it.the small looked like they were protecting the big ship.they all were white colored,they were moving too fast and they were gone heading their destination just like a normal plane does.