Yes, you can use your credit card without having the physical card on you.
This is possible through online transactions.
When shopping online, you can enter your credit card number, expiration date, CVV (the three-digit number on the back of your card), and sometimes an OTP (One-Time Password) sent to your registered mobile number.
This allows you to make purchases without needing the card in hand.
Additionally, some mobile payment apps allow you to store your credit card details and use your phone for payments.