Flipkart is indeed a good shopping site but they have done a great mistake by shutting their mobile site. They are on a marketing strategy to enhance their app only shopping and enabling the crap notifications on smartphones. But I think they are losing a bit first off all their app is not customized well and hence gives a poor performance on low networks and no one wants to install app just for shopping at least not if the user is a casual shopper.
The other competitors are doing great on all the platforms be it app shopping or web shopping. Anyway a good site to buy your stuffs but their app only shopping disappoints me.