24. This clearly appeals to reason, since Section 147 of the Act embodies a power to assess, reassess as well also to recompute. Consequently, and once that power is validly invoked, the original assessment would cease to exist in the eyes of law. Undoubtedly, once an assessment already made comes to be reopened, the AO stands empowered statutorily to undertake an assessment afresh in respect of the entire income which may have escaped assessment. However, the only additional caveat which Ranbaxy Laboratories Ltd. enters is with respect to a situation where, in the course of reassessment, the AO ultimately comes to the conclusion that no additions or variations were warranted in respect of the heads or items of income which had formed the basis for initiation of action under Section 148 of the Act. It is in the aforesaid backdrop that the Court in Ranbaxy Laboratories Ltd. proceeded on facts to hold that since no additions had ultimately been made in respect of items such as club fees, gifts and presents, and which constituted the basis for initiation of reassessment, it would not be open to the AO to revise or modulate findings on any other head or items that may have been dealt with in the original assessment.
