GST RATE ON COMMISSION FOR DCA & CSA

Sir, we are DCA & CSA agent & we get DCA & CSA commission seperately. My query is:-
1.what is the GST rate of DCA & CSA commission?
2. we have CSA agreement in another state. But we are belonging a single code in our supplier portal. Now my query is what kind of commission we get for CSA commission? Is it IGST or CGST & SGST?
Sir pls reply the same. Your kind attention is highly appricited.