“Section 5(1)”

Delay in filing appeals, when supported by sufficient or justifiable cause, should be condoned with a liberal approach to ensure substantial justice. This principle prioritizes the cause of justice over mere technicalities.

An assessee cannot raise a new claim or a claim not made in the original or revised return of income for the first time directly before the Assessing Officer during assessment proceedings.

Foreign exchange fluctuations, whether gains or losses, are inextricably linked to the underlying business transaction and must be accounted for under the mercantile system. The Supreme Court also affirmed the standard accounting principle of valuing stock at cost or net realisable value, whichever is lower.

Employee contributions to provident fund or ESI, even if deposited after the due date specified in the respective welfare statutes, are allowable as a deduction under Section 36(1)(va) if paid before the due date for filing the income-tax return. This judgment aligns the treatment of employee contributions with employer contributions under Section 43B.

Co-operative banks are not fundamentally different from co-operative societies, entitling them to claim deductions under Section 80P of the Income Tax Act, 1961, including for interest income treated as business income.

Payments by Indian residents to non-resident foreign software suppliers for software are considered royalty, constituting income deemed to accrue in India under section 9(1)(v), thereby requiring tax deduction at source under section 195.

Income from offshore supply of goods and services is not taxable in India if the entire transaction, including transfer of ownership and payments, occurs outside India.

Interest received under Section 28 of the Land Acquisition Act, 1894, is considered part of the enhanced compensation on compulsory acquisition of land. It is taxable as 'capital gains' and not separately as 'interest income' under the head Income from Other Sources.