RELIANCE JIO Is highly demanding sim used in India.But some areas jio sim or network coverage cannot be more and in some areas the network coverage is very good i.e., 11.2 to18.0 MBPS speed .This high speed only available in most of the Metropolitan areas.Its customer services are not bad but in some small towns or cities the calling services videos calling services are very good.In the latest recent news that is the services of reliance jio is available till 31 MARCH 2017.After the validity is over than the cost of Internet plans, charges are very high costly paid . This is not good for poor people those who can afford for free data services.