https://www.bgr.in/news/airtel-smart-recharge-p...

Smart 34
This is the cheapest plan from Airtel that offers 28 days validity, 100MB data and a talk time of Rs 25.66. Outgoing calls will be charged at 2.5 paise per second when calling in home network.

Smart 64
This plan also includes 28 days validity, but outgoing calls within the home network are a bit cheaper at one paisa per second. The plan also includes 200MB data, and talk time of Rs 54.

Smart 94
Rs 94 plan also comes with 28 days validity. Users get 500MB data, and a talk time of Rs 94. However, there is a benefit in outgoing calls in home network – they are now charged at 30 paise per minute.

Smart 144
This plan offers a validity of 42 days, and outgoing calls in home network are charged at 30 paise per minute. Airtel has also bundled 1GB 3G/4G data, and a talk time of Rs 144 with this plan.

Smart 244
With the Rs 244 plan, users get a validity of 84 days, and talk time of Rs 244. The plan also includes 2GB 3G/4G data, and outgoing calls are charged at 30 paise per minute.