Guys I downloaded the Google Opinion Rewards from the the PlayStore last week.
I managed to get around 40INR .
This cash cannot be redeemed to our bank account but can be used in InApp Purchases, Purchasing apps, themes, wallpapers, etc.
Even though it is a pretty small amount. It will useful for future when we purchase apps.
There is actually nothing to do in that.
Just keep it in your Device and it will pop a notification regarding a survey.
You need to answer about 5 to 8 questions regarding your views on Google Apps.
And you get paid for it. Its just easy as that.
Thanks for the info. Definitely I will check this app out.