Steps to avail this Offer :- First put your Airtel 4G sim in any 4G handset. (Important) Then Just Miss call on "52122" from your Airtel Number. That's it you will receive a confirmation sms and 1GB LTE data instantly..! Screen Shots :- Spoiler: Click Here Terms & Conditions For Airtel Free Data Offer :- Offer is valid only for Airtel. Offer valid only once per Airtel Mobile Number. Offer available for limited time.