DMAI vs

The Supreme Court addressed the interpretation of 'corrosive chemicals' under Item 3(ii)B(7) of Para III of Part I of the Income Tax Rules, 1962, in the context of depreciation claims for machinery used in sugar manufacturing. The Court held that the term encompasses both free and non-free chemicals that have corrosive effects, thereby allowing the assessee to claim a higher depreciation rate of 15%. The Court overturned the High Court's ruling, affirming the Tribunal's decision that the use of corrosive chemicals in the manufacturing process justified the higher depreciation claim.