Airtel has become aggressive to its Postpaid plans and modifying them one by one with adding additional benefits of data and others. Recently Airtel has done changes to its Rs.649 postpaid plan. As before the plan provides 50GB. But now after revise the plan will give you 90 GB data. This plan also includes free calls in India along with free roaming. There will be no limitation on call. User will also able to send 100 sms in a day, one free family child connection, free Airtel TV, Wynk Music and Airtel Secure subscriptions. Lastly, this plan also offers one-year of free Amazon Prime membership for the users.