Airtel 4G airtel is very old mobile operator company in india. So it is a famous compay more service centers in India. I am using airtel from the very long time its good but sometimes it take extra charges for call and enternet services.
When I bought j7 it will give me an airtel 4G card this card gives me very fastest internet speed 700 kbps in 2g soo I still using airtel.
But some time in my phone already data pack is activated but they cut the balance from my main account.