Rectification under section 154 is confined to manifest, patent...

Rectification under section 154 is confined to manifest, patent and self-evident mistakes apparent from the record; it cannot resolve issues requiring factual examination, legal interpretation or a choice between possible views. Although non-consideration of a binding judgment may constitute such a mistake, disputed computation of taxable income after denial of exemption to an educational society-including treatment of capital receipts and capital expenditure-requires examination of the nature of receipts, expenditure and the applicable computation method. As those questions were debatable and formed part of a pending quantum appeal, rectification could not be used as a review mechanism or substitute for appellate adjudication. The rectification application was therefore rejected, subject to pursuit of grounds in the quantum appeal.