S. 263 : Commissioner-Revision of orders prejudicial to revenue-Non-resident-AO allowed the claim under India-Singapore DTAA-CITA initiated the revisions proceedings on the ground that the assessee conduit company used for treaty shopping-without putting the allegation in the 263 notice-The assessee has not been heard on the said issue-Revision is bad in law-Appeal of Revenue is dismissed-DTAA-India-Singapore. [S.9(1)(vii), 260A, Art. 12]