Before coming to cashkaro I used this site for a long tym.
Its useful. Well tracking system. I dont know how these guys are doing.
Anyway it will work. You can save on each shopping.
But I think everyone can give a try to Topcashback.in as they are giving 100% commsion to us
(Dont know whats their profit then).
But all these sites are not included Flipkart.(My favorite store- I think everyones).
But you have to submit all the orders to get. Recharge. But surprisingly they will give recharge with in 4-7 days(which I got, dont know about others).
So I advice give a Try to each sites I mentioned and decide which is better.
Cheers!