S. 37(1): Business expenditure-Commissioner of Income Tax (Appeals) directed to decide the issue on disallowance of deduction claimed on debenture resumption within 3 months as matter pertains to year 1997-98-Revenue has accepted the finding of Tribunal in assessee’s own case in previous years regarding disallowance of expenses on entertainment expenditure and expenses related to school the same question of law cannot be raised in a subsequent year. [S. 40A (9), S. 246A, 260A].