Jio is a largest network of the world and iam sure of it and I have a lyf mobile also the sim gives only 198to230 kbps speed no more speed is gain. And jio offer is valid for 3rd dec march jio jio launching is best but the welcome offer is start the jio dont give speed the relaince promise the speed is about 30mbps but there is no speed and lyf phone also a bad results in performance my lyf phone is overheated in small use and hang problem is normal the mobile is reallly bad and I request dont buy it pls.