Paytm is Offering 100% Cashback Every Hour On Water Bill Payment by Using the code. Every hour, one lucky User will get 100% Cashback.Get Maximum Cashback Of Rs 1000. This code can be used once per CA number. This code is applicable only on Water Bill Payment. This code can be used 3 times per user. This Cashback will be credited within 24 hours of the transaction into user's Paytm Wallet. Pay Now.