Reliance Jio is one of the best network that i’ve seen. I used the service of JIO 7 months a go and I really satisfied. Jio comes with many data plans which is 4g plans actually. But the most popular plan is rs 30gb high speed data, unlimited calls, unlimited sms and free all it’s apps for only rs 309.
The customer servive os Jio is good. They are very very responsive to his customers.
if you want to buy a jio sim but you don’t have 4g handset, in that positon you need to buy a jio-fi Which is turn your 2g or 3g mobile to a 4g enabled device.