The above concerns would never bother (coz they are not aware) average population , which is more than 95% I guess. Rest is something Fipkart may be willing to trade off.
I guess it will be damn interesting to see how this pans out for Flipkart. FWIS, Flipkart is very unhappy that it wasn't allowed to control (yes control!) the market over web with its Airtel Zero plans. Read more about Net Neutrality [1] events in India lately.
Amazon India is certainly a serious threat to them. On a closed platform (like that of Android which is major in India) they probably have a lot more control and tracking (as someone mentioned it above). I guess it would make a lot of sense for FK to tap the naivete of Indian market and pull them all away from the web.