I am using airtel 4g service over last 4 months.this service is brilliant and bettor than other 4g isp like idea and jio.speed of internet is awesome.airtel is a king of 4g in india.4g signal is almost all over punjab.it also gives good speed when I am travel in bus or car.signal strength is awesome.but only one this which I dont like in airtel that is coast.airtel 4g internet is very expensive and not suited for normal man otherwise this network is brilliant