Input tax apportionment under VAT requires direct nexus with exempt output; incidental by-products do not trigger denial of credit.

Input tax apportionment under the Karnataka VAT scheme applies only where purchases are directly relatable to both taxable and exempt outputs. Section 11(a)(1) disallows input tax only when purchases are attributable to exempt goods, while Section 17 and Rule 131 require a direct basis of apportionment where input tax supports both streams. An incidental exempt by-product arising during manufacture of a taxable product, without any separate manufacturing activity for that by-product, does not by itself create the nexus needed to invoke Section 17. The effect is full input tax deduction where the exempt output is merely incidental.

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Issues: Whether Section 17 of the Karnataka Value Added Tax Act, 2003 is attracted where an exempt by-product arises incidentally in the manufacture of a taxable product, so as to deny full input tax deduction.

Analysis: Section 10 defines input tax and net tax subject to the restrictions in Section 11. Section 11(a)(1) disallows input tax only when the purchases are attributable to the sale or manufacture of exempted goods. Section 17 and Rule 131 apply to cases where input tax is relatable to both taxable and exempt sales and require apportionment on a direct basis. The decisive test is whether there is a direct nexus between the purchases and exempted output. Where the assessee purchases raw material only for manufacturing the taxable product and an exempt by-product emerges incidentally without a separate manufacturing activity for that by-product, the mere sale of the by-product does not attract Section 17. A purposive and harmonious construction of the provisions is required to avoid defeating the legislative intent behind input tax benefit.

Conclusion: Section 17 was not attracted on the facts, and the assessee was entitled to full input tax deduction.

Final Conclusion: The revision succeeded and the denial of full input tax credit was set aside in favour of the assessee.

Ratio Decidendi: Partial rebate under the VAT scheme applies only where input tax is directly relatable to both taxable and exempt outputs; an incidental exempt by-product arising in the course of manufacturing a taxable product does not by itself justify apportionment or denial of full input tax deduction absent a direct nexus with exempt sales.

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