There aren't any good go-karting tracks in bangalore, Carts are not great , the track itself is not too big, and staff is not friendly. But an outing with friends can still turn out to be lots of fun as all that matters is the company. I went there as a group of 7 friends but the staff crowded the track with 3 more carts even after promising us exclusivity and keeping us waiting for 40 minutes.
Anyways all in all it was fun.
They charge Rs 250 for 6 laps ( You actually get only 5 laps, didn't understand the logic). Beware of the hot engine it can burn your hand.