Sagar
I have noticed that the charges will be 0.9% + 18% GST on credit card transactions for NPS payments. So, the effective charges will be 1.062%. Reference:
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So, as you said, one should get at least 1.1% effective cashback or rewards to consider using credit cards for these. Most credit cards give either 1% or 1.5% cashback or rewards but not anything in between like 1.1 or 1.2.
So, one should have a credit card that gives 1.5% or more effective cashback or rewards for the user to get some benefit.
Also, we don't have genuine sources which speak about rewards/cashback on NPS transactions. Including this info in our master chain of [Login to see the link] thread will help everyone. [Login to see the link]