http://www.ideamoney.in/terms-and-conditions/offer-promo

Offers / Promo
Offer Details
Maximum Cashback Eligibility for any customer for all offers combined in a month is Rs. 25/-
5% Cash Back on prepaid recharges through Idea Money
Eligibility:
All Customers requesting Idea prepaid recharge through Idea Money
Detailed Terms & Conditions:
Offer valid from 1st April 2016
Offer Applicable on Minimum Recharge value of Rs. 100/-
Cash Back value limited to a maximum of Rs. 25/- per month
Cash Back will be processed within 3 working days
Offer applicable only on the first Idea Prepaid recharge of Rs. 100/- or more of each month
Offer available for a limited period and IMCSL holds the right to discontinue the offer at any stage
Cashback will not be processed if it exceeds the monthly cash-in limit or wallet balance limit for the customer’s wallet