In this country airtel is the big brand name, not for their name , their service and customer satisfaction is mostly important. I am using this service provider more than 10 years. Now where I live, there are many mobile service provider, but airtel is best. Because here no call drop, good internet speed. But other service provider have often call drop, net speed problem. In rural villages airtel is the most trusted name. I like the feature airtel app, because this app learned me , for today's cash less transaction, and also have a good things that reward.