HDFC LTF CREDIT CARD

Today I've recieved a call stating, we (HDFC) has initiated the LTF Credit Card for your salary account which I opened 5 months ago.

The sales guy told me my details, employer details, address confirmation to deliver card and all information was right. He then asked me to OTP for confirmation and said the card will be delivered to your address.

I wanted to confirm if that's legit or not so I delayed it as of now, The sales guy might have sensed it and told me not to be afraid, or shall I video call to let you know that this is real but I'm at my office so couldn't do anything.

Later I came to know that all the employees who joined with me recieved the same call today.

I wanted to know if this is real that HDFC offers LTF Credit card with salary account? Should I accept and share OTP?