Offshore derivative instruments and over-the-counter derivatives: new rules expand FPI inclusion and definitions in tax rules. The amendment to rule 21AK inserts 'over-the-counter derivatives' after 'offshore derivative instruments', adds a 'Foreign Portfolio Investor being a unit of an International Financial Services Centre' into sub-rule (1)(b)(i), inserts the Foreign Portfolio Investor after 'offshore banking unit' in sub-rule (2), and revises the Explanation by rewording clause (v), adding 'and' to clause (vi), and inserting clause (vii) to define 'Foreign Portfolio Investor' as a person registered under the Foreign Portfolio Investors Regulations, 2019.