From the beginning itself i’m using the Airtel Sim because on that time there was no healthy competitions for Airtel before 10 years. The network is so good but charges are not reliable to all customers. After the announcements made by other networks I waiting for the offer that airtel will be made but till now I am not Receive any offer they only gave offers only for the New customers. That make me more irritate on the network. And the customer service are really worst they made charges for the customer service when the sim is in zero balance the customer service call is not connected.And finally about the charges its not fair when comparing to today’s offers which is made by other network operators . The internet speed is so good at airtel when you browse on the 3G or 4G network, the entire data will be taken for browsing with out download anything.