S. 263: Commissioner-Revision of orders prejudicial to revenue–Assessing Officer failing to consider applicability of minimum alternate tax provisions to assessee-company-Incorrect assumption of facts and incorrect application of law-Revision justified-Book profits-Exclusion from minimum alternate tax-No specific exemption for company under voluntary liquidation-Provisions of company law regarding preparation of accounts not relevant-ITR-6 pro forma recognising liquidation cannot override the Act-Section 115JB clearly applicable-Provisions of minimum alternate tax clearly applicable-Revision justified-Assessee-company undergoing voluntary liquidation citing impossibility of preparing statement of profit and loss-Held, profits and losses determinable under any system of accounts followed, enabling computation of minimum alternate tax.[S.115JB, Companies Act , 1956 , S. 551 , Companies Act , 2013, S. 348]