I am using airtel from last 8 years and my first mobile and first sim use in airtel onliy airtel. airtel is one of the best mobile opreator in bharat.
Iwas using some other operator which is very much expensive. I would say than airtel and airtel provides network almost anywhere. I have never faced issue regarding network. the other plans are also very good and low costly. no. 1 position among other network opretors with its best coverage and customer service and my plan offers. I personally prefer and use airtel.