Rule 57D credit protection bars Rule 57CC reversal where exempt goods are made from waste arising in dutiable manufacture.

Rule 57CC did not apply where common input HCL was used to manufacture dutiable gelatin and the mother liquor emerging in that process was only waste. Rule 57D protected the credit because it preserves input credit where waste, refuse or by-product arises during manufacture of the dutiable final product. The later processing of that waste into exempt phosphoryl A and B did not make the waste a separate exempt final product for Rule 57CC purposes or require reversal of credit. The assessee was therefore entitled to full credit under Rule 57D, and the demand, interest and penalty could not be sustained.

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Issues: Whether Rule 57CC of the Central Excise Rules, 1944 could be invoked to demand 8% of the value of exempt phosphoryl A and B when the common input HCL was used in the manufacture of dutiable gelatin and the mother liquor emerging in that process was only waste, and whether Rule 57D protected the assessee's credit.

Analysis: The decisive distinction was between waste arising in the course of manufacture of a dutiable final product and a separate exempt final product manufactured from common inputs. Rule 57D preserves credit where part of the input is contained in waste, refuse or by-product arising during manufacture of the dutiable product, even if no duty is payable on that waste. Rule 57CC applies only where common inputs are used for both dutiable and exempt final products and separate accounts are not maintained so that the credit attributable to exempt clearances cannot otherwise be reversed. On the facts, mother liquor was an admitted waste arising from the manufacture of gelatin, which itself remained a dutiable product. The subsequent use of that waste in producing exempt phosphoryl A and B did not convert the waste into a final product for the purpose of Rule 57CC, nor did it destroy the protection afforded by Rule 57D.

Conclusion: Rule 57CC was not attracted, and the assessee was entitled to full credit under Rule 57D; the demand, interest, and penalty could not be sustained.

Ratio Decidendi: Where an input is used in the manufacture of a dutiable final product and only waste emerges in that process, credit cannot be denied or subjected to the 8% mechanism merely because the waste is later processed into an exempt product.

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