Officer to make a back assessment, but in section 147 of the Act [with effect from 1-4-1989], they are given a go-by and only one condition has remained, viz., that where the Assessing Officer has reason to believe that income has escaped assessment, confer jurisdiction to re-open the assessment. Therefore, post 1-4-1989, power to reopen is much wider. However, one needs to give a schematic interpretation to the words "reason to believe" failing which, we are afraid, section 147 would give arbitrary powers to the Assessing Officer to re-open assessments on the basis of "mere change of opinion", which cannot be per se reason to reopen. We must also keep in mind the conceptual difference between power to review and power to re-assess. The Assessing Officer has no power to review; he has the power to reassess. But reassessment has to be base on fulfilment of certain pre-condition and if he concept of "change of opinion" is removed, as contended on behalf of the Department, then, in the garb of re-opening the assessment, review would take place. One must treat the concept of "change of opinion" as an in-built test to check abuse of power by the Assessing Officer. Hence, after 1-4-1989, Assessing Officer has power to reopen, provided there is "tangible material" to come to the conclusion that there is escapement of income from assessment."
