As per case facts, Sapphire Foods India limited filed its ITR for AY 2016-17. Post-scrutiny assessment and a partial appeal allowance, Revenue initiated reassessment based on audit objections regarding incorrect ... allowance of significant payments to its MD and shareholder (joining bonus/professional fees), deemed excessive and not business-related. Petitioner argued all facts were disclosed during original assessment, making it a change of opinion and time-barred. The question arose whether reassessment proceedings, based on audit objections concerning expenses already disclosed and implicitly allowed, constitute an impermissible 'change of opinion' or 'review' of a concluded assessment, and if the notice was barred by limitation under the Act. Finally, the High Court held that reopening based on audit objections, when all relevant information was available and considered during original assessment, amounted to reviewing a concluded assessment, which is impermissible. The notice was also deemed time-barred, issued beyond the four-year limitation period as the assessee had fully disclosed all material facts.