There was a time when airtel was the king of mobile networks. But I think those days are gone now.
I am using airtel for around 10 years. In the past there was no equality of airtel in network. But today call drops and uneven voice is too common. I find the full network always. But still people are unable to get my voice or vice versa. Complained many times but got temporary solution and again reverted to same situation. Call rates and data rates, are also expensive when compared to others.
I don't prefer this network anymore.