S. 44B: Shipping business-Non-residents-Computation-Taxability in India-Presumptive tax-Business of operation of ships for international carriage-Goods and services tax collected as statutory levy and shown separately in invoice-Not part of gross receipts-Tribunal, in assessee’s own case for earlier years, consistently holding service tax excludable from gross receipts-GST not includible in computing income under section 44B-Addition deleted-Income offered to tax under section 44B read with section 90(2)-Section 115JB not applicable-Book profit computation deleted-DTAA-India-Hong Kong. [S. 90(2), 115JB(1), Expln. 4A,145A], Art.8]