There is this new talk currently trending in town. It's the new Airtel Small Money Big Data Package on SmartCONNECT with which you can get 1.5GB for #500, 7GB for #1500, 3GB for #100 and 11GB for #2500.
How to Be Eligible for Airtel Small Money Big Data Package
Airtel Small Money Big Data Package is only available to Airtel customers on the SmartCONNECT plan. If you are an existing subscriber, you can just migrate to the plan and if otherwise, get yourself an Airtel sim card and start enjoying life with Airtel. To migrate to Airtel SmartCONNECT, follow this link.