Recently I came across this method which gives you access to free 500 MB of 3G data, on all types of Airtel (postpaid as well as prepaid).
Here's what you've got to do:
- Go to the URL: https://www.airtel.in/myaccount/NavigationApp?num=MobileNumber where MobileNumber is your Airtel number.
- They will send a One Time password to your above specified number, enter it on the site, and hit submit.
- On the next page that opens, there would be a panel having "do more" at the bottom, hover your mouse over it and three options come. Select transaction details and note the URL of the page you're taken to. It would contain your msisdn number at the end. Copy it and replace it in the URL:
where XXXX is your msisdn number obtained in the previous step.
- When you open this URL, you'll get a page having a panel on the left and one image towards the right stating you'll get free 500MB of 3G data.
- On opening this, you get a page asking for your alternate number and email ID. Enter these details and voila! You receive a message on your mobile confirming the same.