Do I need a separate GST?

Hello,

I have GST with the Constitution of Business as Proprietorship and Taxpayer Type as Tax Collector (Electronic Commerce Operator). I have my own website and mobile application to deliver food online.

Now, I am joining the food aggregator(Zomato, Swiggy, etc) for food delivery, so do I need a separate GST for it or can I continue with my already existing GST and if I can continue do I need to do any modification in the GST online portal?

Thank you.