The worst unstable network is of Reliance. To get the Jio sim for 3 months I purchased LYF smartphone. Only in the starting for 1 week it worked properly with good speed but after that it showed its reality. Internet started disconnecting at anytime. When I complained to the customer care they gave me another number and when I complained on that another number they gave me the number of the customer care whom I complained before. The service is horrible. Finally sent them mails regaring my problem and they responded saying that the issue will be fixed soon but it has not being fixed yet. Also calling on any another network is like a big challenge. I would never recommend anyone to purchase reliance jio.