Modvat credit on used inputs and limits on appellate jurisdiction over unraised classification issues

Modvat credit on sulphuric acid used in manufacture could not be denied merely because part of the input emerged as spent sulphuric acid after processing; the decisive test was whether the input had been put to use in manufacture, not whether it was fully exhausted or remained in altered form. The commentary also notes that an appellate authority cannot travel beyond the original disallowance order and classify spent sulphuric acid where no separate duty demand or classification issue was raised in the adjudication. Any fresh demand on that product would require separate proceedings.

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Issues: (i) Whether Modvat credit taken on sulphuric acid used in manufacture could be denied merely because part of the input emerged as spent sulphuric acid after the manufacturing process. (ii) Whether the appellate authority could classify the spent sulphuric acid and decide an issue beyond the scope of the original order that was confined to disallowance of Modvat credit.

Issue (i): Whether Modvat credit taken on sulphuric acid used in manufacture could be denied merely because part of the input emerged as spent sulphuric acid after the manufacturing process.

Analysis: Rule 57F(1)(ii) applies where inputs are removed as such without being put into manufacture. The entire quantity of sulphuric acid had been subjected to the manufacturing process, and the recovered spent acid was only a processed product emerging after reaction and treatment. The fact that some quantity was recovered in a different form did not make it the original input cleared as such. The credit entitlement depended on use of the input in manufacture, not on its complete exhaustion or total assimilation in the final product.

Conclusion: The denial of Modvat credit was not sustainable and the assessee was entitled to restoration of the credit.

Issue (ii): Whether the appellate authority could classify the spent sulphuric acid and decide an issue beyond the scope of the original order that was confined to disallowance of Modvat credit.

Analysis: The original adjudication dealt only with disallowance of Modvat credit and did not raise a separate proposal for recovery of duty or classification of the spent sulphuric acid. The appellate authority could not enlarge the controversy by determining classification on a matter not covered by the original order. Any fresh duty demand on that product, if otherwise permissible, required separate proceedings.

Conclusion: The classification finding was not maintainable and was set aside as beyond the scope of the original proceedings.

Final Conclusion: The appeal succeeded and the assessee obtained relief against denial of Modvat credit, with the additional classification finding also set aside.

Ratio Decidendi: Under Modvat, credit cannot be denied merely because the input emerges in altered form or as a recovered by-product after being used in manufacture; the critical test is whether the input was put to use in the manufacturing process, and an appellate authority cannot decide matters beyond the scope of the original adjudication.

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