Required separate GST registration

Yes, only one GST registration is required for same vertical of business as it is pan India based

For using same GSTN for two types of business you should remember two things 1) Goods or Service or both of both business to be shown in GST CORE BUSINESS HSN AND SAC CODE TAB 2) If address of both business are different then you should add additional place of business in your GST Registration else ITC will not be allowed.