That would be nice. He wouldn't have to open a savings account just for paying bill.In my opinion, if the credit card payment for the entire financial year would exceed 10 lac, only then an entry will be made in your father's AIS stating that x amt was paid to a credit card company.
If the amount is under 10 lac, there should be no harm in you paying your father's cc bill using your savings a/c. There will be no tax.
If you have classic and above accounts, then you can start an 0 MAB add on account with the same variant for your father. The add on account will receive the same benefit incl Platinum debit cardThat would be nice. He wouldn't have to open a savings account just for paying bill.