As you all know jio has offered unlimited services including Internet, phone call, messages.at first, this free services were valid for 31 st December but recently this free service is extended to 31 March.so all we need to do to enjoy this free service is to get a jio sim, which is also free and very easy process. after activation of the sim, you can enjoy unlimited data services, calls, messages.it’s network coverage is very good that means you can enjoy jio service in places where even 3g isn’t available now a days.and the customer service is also very satisfying.if you get face any problem, then all you need to do is just make a phone call to the customer service and they will try their level best to solve your problem.and the most important thing is that you don’t have to pay any money for this service as it is absolutely free till 31 March.so jst grab this opportunity and get a new jio sim.but remember it’s free only for 31 March.