HDFC Autopay returned to account

Sorry for the noob question. I'm still learning, and this is my first credit card. Please don't roast me.

I have set up autopay on the HDFC banking app, and it's been working well and without problems for over a year now. I forgot that today was the due date, and I was moving my money around to another bank account, so my HDFC bank account had low funds at the time of this auto-debit, and the autopay amount was returned to the account. I know this happens when there are insufficient funds.

I put the money back into the account, and there are more than enough funds to cover the bill. Should I wait for it to auto-debit again, or do I pay the bill manually? Is the return charge very high in HDFC? And will I be charged any penalty for late payment? I don't use the card much, so the bill is like 850 INR, that's all :/