The only connection in the world which gives you everything free. Free mean no conditions apply like other mobile networks.
When I heard about jio 4g sim I thought it would be some ad for promotions but then I seen one of my friend really using it and he describe about it that its the best network for now and gives everything free, calls, messages, internet etc etc.
And we can get the sim from any retail mobile shop without any money, yes you heared right sim also free.
Do try it