After vodafone now idea also giving 2gb 4g data as free .and also giving idea to idea 50 minutes.Idea users get 2GB 4G Data + 50 minutes Local idea to idea free Calls just by Upgrading your sim to Idea 4G.This is not a trick this officially announced by idea.... Avail the offer just by following below steps.
Steps to Follow:-
• Go To Your Nearest Idea Store
• Tell them to upgrade your old idea 4G Sim to 4G or Pick new 4G sim
• After activation Put The Sim In 4G Enabled Phone
• Write A Text Message As GO4G To 12345
• Thats It.You Will Get A Conformation SMS In Some Time.