I'm planning to start a PRINT ON DEMAND business on US based e-commerce platform, where I just have to upload designs and rest including receiving order, processing and delivering the orders will be done by that ecommerce site. I will get paid through PayPal depending upon the sales. Will this payment be considered as royality? If, yes who will be responsible for GST? Because, if such ecommerce site or publisher is located in INDIA ,then it's that publisher's responsibility to pay GST on reverse charge basis. But, if such publisher is situated OUTSIDE INDIA, then who will pay GST & at what rate will it be charged?