S. 37(1) : Business expenditure-Capital or revenue expenditure-Brand relaunch expenses spread over three years-Activity not enlarging profit-making apparatus nor new line of business-Substantially revenue expenditure though benefit accruing over years-Not capital merely because benefit flows over more than one year-No enduring advantage in capital field-Expenditure allowable-Disallowance of expenditure relating to exempt income-No exempt income earned during year-Explanation introduced by Finance Act, 2022 prospective, not applicable-No disallowance called for-Accrual of liability-Expenditure disallowed as prior period expenses-Ascertained and crystallised during the year-No deduction claimed in earlier years-Allowable in year of crystallisation-Deduction only on actual payment-Delayed payment of employees’ contribution to provident fund and employees’ State insurance-Not allowable. Payments to foreign agencies for services rendered abroad-Payees having no permanent establishment in India-Payments not taxable in hands of non-residents under Double Taxation Avoidance Agreements-Cannot be disallowed for failure to deduct tax at source. Commissioner (Appeals) directing Assessing Officer to reconcile difference between interest receipts and bad debts-Mere directions for verification-No interference called for. [S. 2(24)(x), 9(1)(vii), 14A , 40(a)(i) , 43B , 250 , 254(1)]