S. 32(1): Depreciation-Goodwill-Amalgamation of companies-Excess purchase consideration over net assets recorded as goodwill-Fallacy of Assessing Officer in treating goodwill as transferred from amalgamating to amalgamated company-Goodwill generated only as result of amalgamation, not asset transferred-Statutory provisions relied on inapplicable-Goodwill created as result of amalgamation allowable for depreciation-Appellate Tribunal-Scheme of amalgamation-National Company Law Tribunal’s order approving amalgamation attaining finality-Revenue ought to redress grievance before appropriate forum-Having failed to do so, cannot raise ground before Tribunal. [S. 254(1)]