Classification and CAS-4 costing must be examined first before sustaining valuation-based captive-clearance duty demands.

A valuation-based excise demand on captive clearances could not be sustained without first examining the substantive classification plea that the goods fell under heading 8424 and attracted nil duty. The Tribunal held that classification was a threshold defence and that the adjudicating authority erred by refusing to consider it merely because the show cause notice focused on undervaluation. It also held that captive-clearance valuation had to be reworked on a CAS-4 cost-of-production basis under the applicable valuation rules, and that general assessable value principles were insufficient. The order was set aside and the matter remanded for fresh adjudication on both classification and valuation.

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Issues: (i) Whether the Commissioner was right in refusing to examine the classification plea that the goods were classifiable under heading 8424 and chargeable to nil rate of duty. (ii) Whether the demand based on valuation could stand without determining cost of production in accordance with CAS-4.

Issue (i): Whether the Commissioner was right in refusing to examine the classification plea that the goods were classifiable under heading 8424 and chargeable to nil rate of duty.

Analysis: The show cause notice proceeded on undervaluation, but the duty demand itself could not survive if the goods were found to be correctly classifiable under heading 8424 and liable to nil rate of duty. The classification plea was therefore a substantive defence that had to be examined before any valuation issue could be decided. The refusal to consider this plea merely because the notice focused on valuation was held to be incorrect.

Conclusion: The classification issue had to be examined on merits, and the Commissioner's refusal to do so was unsustainable.

Issue (ii): Whether the demand based on valuation could stand without determining cost of production in accordance with CAS-4.

Analysis: For captive-clearance valuation, the relevant exercise was to ascertain the cost of production under Rule 6(b)(ii) of the Central Excise Valuation Rules, 1975 and Rule 8 of the Central Excise Valuation Rules, 2000, as applicable. The Tribunal noted that the proper basis was CAS-4 costing and that the Commissioner had not examined whether the appellant's cost data conformed to that standard. The reliance on general assessable value principles was held inapposite to the distinct question of cost-of-production computation.

Conclusion: The valuation finding could not be sustained, and the cost of production had to be re-examined under CAS-4.

Final Conclusion: The order was set aside and the matter was sent back for fresh adjudication, with directions to decide both classification and valuation issues on merits.

Ratio Decidendi: Where a duty demand is founded on undervaluation of captive clearances, the adjudicating authority must first decide a substantive classification plea that, if accepted, renders the duty demand irrelevant, and must compute cost of production on the applicable CAS-4 basis before sustaining valuation-based demand.

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