Freecharge: 20% cashback on Electricity Bill Payment for users doing first transaction for Electricity Bill Payment. Max cashback of Rs.100 Coupon Code:* FIRSTBILL* T&C: Valid on successful First transaction of Electricity Bill Payment done till 23rd March 2016 Valid on min. transaction of Rs.200. Max cashback of Rs.100 FIRSTBILL Promocode has to be applied to avail cashback offer Valid only Once per User/Credit/Debit Card/Mobile Number Valid on C