I am using airtel broadband service from last 5 - 6 years and the speed which they provide is very nice.
I will not say very very fast as sometimes problem happens in it, otherwise, there is no issue in it!, In my city bsnl is known as the best service provider but airtel is way ahead than bsnl.
As I told airtel has never disappoint me, their customer service is also very nice, they talk very politely and are very good nature human being. I love enjoying there service! and I would recommend everyone to use airtel broadband connection as it’s speed is really good!