(Account Specific) Get Rs.15 or 25 cashback on recharge of 50 via Helpchat
https://www.helpchat.in/sharedeals/offer/helpchat-get-10-cashback-on-recharges-4/
Terms and Conditions:

• Get Rs.15 Cashback on recharges done via Helpchat.
• Offer valid for selected users only.
• Valid once user or device or mobile number.
• Use coupon code "AUG15".
• Minimum recharge amount Rs.50.
• Maximum Cashback Rs.15.
• Not valid for Airtel users.

Valid Till: Aug. 17, 2016, 11:59 a.m.

https://www.helpchat.in/sharedeals/offer/helpchat-flat-rs25-cashback-on-rs50-or-above-4/
Use coupon code RCAUG
Terms & Conditions:
• Flat Rs.25 cashback on Rs.50 or above
• Valid for selected users only
• Valid till stock lasts
• Not valid on Airtel recharges
• Cashback will be credited immediately
• Valid one time per user/device/number
• Offer valid for all recharges - Prepaid, Postpaid, DTH
Valid Till: Aug. 20, 2016, 11:59 a.m