Took a JIO m-wifi and the speed is good. Had to see how I could get this service without shelling a lot on a 4g enabled phone, admit that there is no dearth of cheap 4g ones in the market, but I was looking for a decent one which was costing way beyoind my budget and so I took a JIO dongle.
Cannot complain since this is a free service. Will pay 99 as premium membership and will wait and watch before I get pre-paid service for a month and decide if I can go with this service for the next one year!