(1)If, the Assessing Officer, at any stage of the assessment or reassessment proceedings before him having regard to the material and evidence available, considers that it is necessary to declare an arrangement as an impermissible avoidance arrangement and to determine the consequence of such an arrangement within the meaning of Chapter X-A, then, he may make a reference to the [Principal Commissioner or Commissioner] [Substituted by Act 25 of 2014, section 4, for 'Commissioner' (w.e.f. 1-6-2013).] in this regard.