Freecharge: 20% Cashback on First Landline Bill Payment Transaction of Rs 200 or more. Max Cashback Rs 100
https://www.freecharge.in/
Coupon Code: FIRSTLL
T&C:
Valid on successful First transaction of Landline Bill done till 7th April 2016
Valid on min. transaction of Rs.200. Max cashback of Rs.100
FIRSTLL Promocode has to be applied to avail cashback offer
Valid only Once per User/Credit/Debit Card/Landline Number
Valid on Credit/Debit card, Netbanking and FreeCharge Balance
Cashback will be credited to your FreeCharge Wallet which can be redeemed within 185 days from date of credit, and is non transferable
Not valid on Virtual Cards & International Cards which are issued outside India
Not valid for Add Cash & Airtel Postpaid/Prepaid/DTH/Landline
Offer valid only on FreeCharge App, Web & mWeb
We reserve the right to end any or all offers at our discretion without any prior notice

http://offers.freecharge.com/FIRSTLL/