People love adventure and sports during weekends people in Bangalore has got only one option to roam is the Malls in and around it. Normally you can find minimum of 5-10 malls in 15 km circle.
In Phoenix mall at Whitefield is one of the hotspot for many and one of the biggest though they have all multinational shops and a decent food court they recently added a adventure sport Bungee Jumping.
I don’t know how safe to try this in India but it was neatly organized.
Check out the video of a guy falling
https://youtube.com/watch?v=72dYh6g6izA