S. 263 : Commissioner-Revision of orders prejudicial to revenue-Firm-Remuneration to partners-Book profits-interest income not excluded while determining allowable deduction of remuneration to partners-Interest income business income-Deduction admissible-Central Board Of Direct Taxes Circular No. 12 Of 2019, Dated 19-6-2019-Revision is quashed. [S. 40(b)(v)]