Is there gst on royalty from books sold abroad by amazon

Hi

I am going to be published as an author on Amazon USA. These books are available only on Amazon USA and as such, I will be earning Royalty on the books sold. Under the earlier Service Tax regimes and everything, this was not considered taxable.

There is a case pending in the Delhi High Court about 12% royalty on Copyright. I want to know if this will be applicable on Foreign Royalty income for books. I am receiving the money in a payment gateway Payoneer.