Closing HDFC Diners Black Card?

Hi all, Is it possible to close my HDFC Diners Black card and switch to an LTF HDFC Swiggy card? What happens to the existing points on my Diners Black card?

@Ankit No need to close your Diners card to get the Swiggy card.

@Sneha26 Right, I’m not able to meet the spend requirements on DCB anymore. My average spend is around 1 lakh on other cards (Amazon ICICI, Flipkart Axis, Airtel Axis). I don’t have much use for DCB now, so I’m concerned about what will happen to the 50k points I have accumulated.