Section 92 of the Income Tax Act

A fixed place of business constitutes a Permanent Establishment (PE) under Article 5(1) of a Double Taxation Avoidance Agreement only if the premises are actually at the disposal of the foreign enterprise, thereby satisfying the crucial 'disposal test', and it is through this fixed place that the foreign enterprise carries on its business, wholly or partly.

The Transfer Pricing Officer (TPO) is empowered to determine the Arm's Length Price (ALP) of an international transaction at "nil" if the assessee fails to establish that payments made to an Associated Enterprise (AE) were commensurate with the benefit received or the quality of services availed. This determination constitutes an adjustment to ALP, distinct from a disallowance of expenditure.

For a place to constitute a Permanent Establishment (PE), it must be at the 'disposal' of the enterprise, and the business must be carried on through that place.

Penalty under Section 271G cannot be imposed for failure to furnish segment-wise details of related and non-related party transactions in the diamond industry due to practical difficulties.

A company that is functionally dissimilar to the assessee and has been excluded in similar cases of other assessees should be excluded from the list of comparable companies for the purpose of determining the arm's length price.

The Comparable Uncontrolled Price (CUP) method is the most direct method for determining the arm's length price of international transactions and should be preferred over other profit-based methods.