Multiple offers are up on the Amazon pay section for mobile recharge, dth recharge, electricity bill, postpaid and landline bill.

The cashback is guaranteed when minimum required amount is transacted but the exact amount of cashback value is based on a lottery system.
A minimum cashback is guaranteed and if you are lucky you stand a chance to get a cashback of higher amount. You might actually get 100% cashback or more, if you are extremely lucky.

Offer is valid only till 28th of February.