Congrats on your first credit card...

I think you got a MoneyBack credit card from HDFC because they give this card mostly to their customers who are getting a card from HDFC for the first time...I'm using it too...
Use your card well buddy...Never miss even a single due date & always pay on time or before time...Your CIBIL will keep on increasing & you will start getting offers from banks for their cards...
Mostly try to aim for lifetime free credit cards (except SBI off-course which doesn't provide any Lifetime free cards) from ICICI, Axis, HDFC & SBI because most sites run offers for these cards only so it will be an wastage of money to get multiple paid/annually chargeable cards if you can't utilize them properly...After you have a considerable CIBIL, apply for ICICI Bank Lifetime Free Platinum Chip Credit Card as ICICI bank always have the most online offers on their cards...