S. 264 : Commissioner-Revision of other orders-concessional rate of tax on dividend distributed to its foreign holding company-Not justified in rejecting revision application on ground that assessee could have filed a revised return or an appeal under section 248-DTAA-India-Mauritius-Matter remanded to decide on merit. [S. 9(1)(i), 90, 139(5), 195, 248, art. 10(2),Art.226]