I am using R Jio sim I am totally satisfied with it 's service, Coz It has a great 4G network across the Country. Brand store on Small loctions . Delivering Cutomer services to the cutomer at the best level.
Apart of it they are providing us free Internet data till 31st of Dec 2016, Free calls SMS for life time.
But sometime Internet does not respond
Maximum time it gives us maximum less then 100 kbs speed.But all in all it 's good.