Paytm is the one of the best site for the online shopping in India for me.
I like it very much specially because of the big offer on the each product .
The desine on the each product is good , always shows real image with the models , the sizing of the products are very good ( comfort fiting ) , cash on delivery available on each products and easy to use.
But here is some minor problem that is if you want to return product that means refund problem, actually I never need to return any product.
Otherwise paytm is very use full.