Hey if you are using this app thinking that it will give you money, then forget that.
I also thought that and started working on this app. I spent 14-15 days and earned a total of 50 rupees and do you know what happened then. My Taskbucks application crashed. When I again tried to withdraw again the same problem.
I reinstalled the app but still the provlem remains. I contact the costomer support but no reply.
Remember this app works only till you dont have enough to cashout. As soon as you get enough to encash, it stops working.