Hiii,
Jio users are lucky because I am also using jio the network coverage is very well. But at the time of calling the calls are blocking the jio company has over 28 millions users the jio is fully supporting to the students so students have to use this sim compulsory. After 31 dec the amount of 1GB data on jio will be 50 rupees. So it is the cheapest sim ever in the planet.