Guys I have been using jio sim for a year now through my experience I can tell it that its not the best but what can you ask for more from a already free sim. It has a great call drop issue which needs to fixed and the network is not reliable as it sometimes discontinues itself which is very harmful in any case of emergency when you need to make call urgently
but I plus point is that it give a free 1 gb 4g data everyday and who would say no to free internet