S. 32 : Depreciation-Goodwill-Amalgamation-Difference between purchase consideration and net assets acquired on demerger-Claim for depreciation not disputed in year immediately following demerger Disallowance of depreciation in later years relying solely on fifth proviso to section 32(1)-Proviso applicable only in year following demerger-Depreciation claim for subsequent years not barred-Matter remanded to Tribunal.[S. 43(6)(c)]