Section 11(1) of the Income Tax Act

The Supreme Court approves the mixed fund theory, holding that no interest disallowance is warranted under section 36(1)(iii) if investments or advances are made from the assessee's own non-interest bearing funds, even when mixed funds are available. This presumption applies when non-interest bearing funds are sufficient to meet the investments.

The proviso to Section 2(15) of the Income-tax Act, 1961, requires a narrow interpretation of 'business'; an activity is considered 'business' only if undertaken with a profit motive, and not every transaction for a fee or incidental profit from a charitable activity will deny exemption.

An excess of expenditure incurred by a charitable trust in previous years can be adjusted against the income of a subsequent year, and this adjustment is considered an application of income for charitable purposes under Section 11.

Income of a charitable trust, other than from a business undertaking covered by Section 11(4), is determined based on its books of account. Payments of income tax and wealth tax by the trust are considered an application of income for charitable purposes under Section 11.

Failure to fully and truly disclose material facts, for the purpose of reassessment beyond four years, extends beyond the income tax return to omissions during assessment proceedings. Mere disclosure of a transaction does not constitute true and full disclosure if underlying material facts are withheld.

The Delhi High Court held that the mere receipt of fees or charges by an entity engaged in the advancement of general public utility does not automatically classify its activities as trade, commerce, or business under the proviso to section 2(15) of the Income-tax Act, 1961.

A mistake in the income return where the assessee omitted to exclude certain income can be rectified by the Commissioner, and revision should not be denied based on such an omission.

Excess application or expenditure of income for a charitable purpose can be carried forward for set-off against income in subsequent years.

A trust can carry forward a deficit from the current year and set it off against the income of a subsequent year, which is considered an application of income for charitable purposes within the meaning of Section 11(1)(a).

An assessee's failure to fully disclose material facts regarding expenses incurred for tax-free income during assessment proceedings can lead to the reopening of assessment, as it constitutes an omission and failure to disclose necessary information for completing the assessment.