Bats at Kovalam Junction

I went up to Kovalam Junction at dusk today, around 18:15, and saw the massive bats again. Their wingspan must be around 4ft, or 125cm, HUGE! They were roosting in a colony in one large tree at the junction itself and actually making quite a racket, unperturbed by the people and vehicles beneath. A few were flying around and landing back in the tree - I imagine they were just about to set off to feed somewhere. These monsters could be the "Indian Flying Fox" which is the largest of all bats and feeds exclusively on fruit. There was also one little bat - 15cm or so. It looked minute in comparison but would probably be considered large in the UK!