I think paytm is one of the best e-wallet in India. in past I used paytm for mostly mobile recharges because it provided cashback. but nowadays since most of the shops(big and small) use paytm, I use paytm app everyday for money transfer.
paytm online shop is also very good. product quality is very nice, delivery is fast and their return policy is great.
customer service is a bit slow but other than that this is a very promising online shopping site.