Airtel : Free 4G Data Offer

Airtel : Free 4G Data Offer 

How to get free 4G data:-

Airtel giving 10 GB 4G data for free on giving a miss call.

Number is 5999555.

Offer only for selected user.

Airtel another offer get free 4Gb/2gb 4G data:-

Just gives a Miss call on  52122 and get upto 4Gb free data.