1. Download/ update Mobikwik app or login to mobikwik.com website.
2. You may add Aadhar Card within "Update Profile" section of My Account, though it is not mandatory till now.
3. Go to Mobile => Enter your JIO number & choose circle => Enter Recharge Amount as Rs. 149 or more.
4. Apply promo code JIO100
5. If coupon is applied successfully, proceed to payment. You'll get Rs. 100 cashback in the form of supercash!