Choosing the Best HDFC Debit Card for 1% Cashback on Credit Card Bill Payments

Pay through SBI Unipay. Suggest to use desktop website. Pay atleast 7 day in advance as failure rate is higher than others, so even if it fails you can pay in time. SBI Unipay will count as utilities and you will get 1% on HDFC platinum debit card
If I pay using paytm with the hdfc debit card will i get 1%cashback or only we need to use hdfc billdesk?
 
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