Paytm - 2% cashback upto Rs.300 on DTH Recharge.
https://paytm.com/shop/p/get-upto-rs-300-cashback-on-dth-recharge-DEAGET-UPTO-RS-PAYT49E0E126D

T&C
1. Get 2% Cashback upto Rs.300 on your next DTH Recharge.
2. Single unique promocode can be used only once by user.
3. User can use 5 different codes per account per number.
4. Promocode is valid only on DTHRecharge.
5. Cashback will be credited within 24 hours of the transaction into user’s Paytm Account.
6. We reserve the right to end any or all offers at our discretion without any prior notice.
7. Not valid on Airtel DTH Recharge.Valid Till 31st July,2016