S. 263 : Commissioner-Revision of orders prejudicial to revenue-Branch to head office-Interest paid by Indian branch of assessee non-resident bank to its Head Office and overseas branches being a payment to self would be governed by principle of mutuality and, therefore, same could not be brought to tax as per provision of section 9(1)(v)(c)-Revision is held to be not valid-DTAA-India-USA. [S. 9(1)(v)(c), Art. 11]