I buy things regularly from paytm.com . I am happy with their service and their unique idea of cashback is very good and many times I have found that it beats the market leader amazon.in and flipkart.in in the price segment . It is also better than amazon.in and flipkart.com in my opinion because you can do many other things also like book hotels, bus tickets, recharge mobile tv data card, pay electricity bill. Snapdeal also offers cashback through its subsidiary firm freecharge and mobikwik too but the scheme is best on paytm.com and in real sense it is the creator of this idea.
The only thing that makes paytm.com lag behind is their delivery time which usually takes more than one week .