SBI Rupay Platinum debit card can be used to pay Credit Card Bills via Paytm/Mobikwik and Billdesk portals of certain credit cards.
You get 50 paise for every Rs 200 spent. minimum transaction amount should be 400 and max Rs 10,000.
So you will have to pay in multiple of Rs 10,000 to get max rewards on your SBI Debit card.