In my point of view , airtel is the best operator , the first sim card I bought it was airtel n I still the customer of airtel , it is well know for it’s great network , airtel provides network even that region where no sim card can provide.
The call rate of airtel is also affordable and the data services are very good n provides a very good speed , it is best for traveling purposes.
Proud to be an airtel customer from beginning
Thank u airtel