Cenvat credit and clandestine removal claims fail where manufacturing loss is bona fide and unaccounted clearance is unproven.

Credit could not be denied where inputs were admittedly issued for manufacture and were lost during bona fide trial batches, because loss in the course of intended manufacture does not justify disallowance. Allegations of clandestine removal also failed, as duty demand cannot rest on input-output ratios, new technology, assumed higher production, or theoretical yield calculations without affirmative material showing actual unaccounted clearance. With the duty demand unsustained, penalty and interest could not survive because they depended on a valid underlying duty determination. The result was full relief on credit, duty, penalty, and interest.

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Issues: (i) whether credit could be denied in respect of inputs used in the manufacture of nine batches that were lost during the manufacturing process; (ii) whether the allegation of clandestine removal and the resulting duty demand could be sustained on the basis of input-output ratio, new technology, and assumed higher production; (iii) whether penalty and interest could survive once the duty demand failed.

Issue (i): whether credit could be denied in respect of inputs used in the manufacture of nine batches that were lost during the manufacturing process.

Analysis: The inputs were admittedly issued for manufacture, and the failure of the trial batches resulted in loss during the manufacturing process. Once inputs are put to use for intended manufacture, loss of such inputs in the course of manufacture does not justify denial of credit.

Conclusion: Credit could not be denied and the disallowance was unsustainable.

Issue (ii): whether the allegation of clandestine removal and the resulting duty demand could be sustained on the basis of input-output ratio, new technology, and assumed higher production.

Analysis: The case rested on the declaration regarding adoption of new French technology and on a comparison of expected and actual yield. Mere installation of new machinery or the existence of trial runs does not establish optimum production immediately after installation. In the absence of material showing actual movement of unaccounted goods, clandestine removal cannot be inferred from assumptions, presumptions, or theoretical calculations.

Conclusion: The duty demand on alleged clandestine removal was not sustainable.

Issue (iii): whether penalty and interest could survive once the duty demand failed.

Analysis: Penalty under Rule 173Q(1) and the allied provisions, as well as interest, depended on a valid duty determination. Since the demand itself was not established, no basis remained for penal or interest liability.

Conclusion: Penalty and interest were not sustainable.

Final Conclusion: The appeal succeeded and the order of the lower appellate authority was set aside in full, with the assessee obtaining relief on credit, duty, penalty, and interest.

Ratio Decidendi: Clandestine removal must be proved by affirmative material, and credit cannot be denied for inputs lost during bona fide manufacture; duty, penalty, and interest cannot rest on mere presumptions or theoretical production estimates.

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