Why should I link credit or debit card when I have already linked my bank account
I would like to know why I should link the credit card or debit card when I have already linked my bank account. Since I am using Rupay card I am not able to link my debit card . But I have successfully linked my bank account and yet when I try to do payments through paypal I am not able to do the payment since the debit card is not linked in the account .
Is there a way to avoid linking my debit card and just with the bank account details will I be able to make transactions ??