Airtel created few topups don't know if it's released in app:
special kids topup Rs.25 for 1's month and 45 from second month
special Eng movies SD Rs.25 for 1st month and 45 from 2nd month
special recording topup 15 for 1'st month 33 from 2nd month
Eng Movies 4HD 30 for 1'st month and 60 from second month