Here is Airtel free internet Offer.
You will get 1.2GB internet for installing 4 apps but bad condition is that this internet is night pack internet from 12am to 6am only.
Follow the below steps:
1. Open airtel Offer Page by Clicking here.
2.Enter your mobile number and click on button Get The Link
3. Just download the apps to get free data
Major Terms and Conditions
**For each app you will 100MB data per month for 3 month
**This data can be using on only on 12am to 6 am only
**The Offer will be delivered in 100 MB installments each valid for 7 days from the date of credit of such installment.
Check full terms and Conditions by clicking Here
http://www.airtel.in/free/terms.html