S. 14A : Disallowance of expenditure-Exempt income-Interest-No exempt income-Income of an assessee has both taxable and non-taxable elements, it would be principle of apportionment of expenditure relating to non-taxable income which would have to be identified for purpose of making disallowance under section 14A-No disallowance can me made-Explanation in S. 14A came to be inserted by virtue of the 2022 Act, w.e.f. 1st April, 2022 will apply in relation to the asst. years. 2022-23 and subsequent assessment years. [S. 260A, R.8D]