Marketability controls excise liability for an intermediate product; absence of proof also defeats demand, limitation, and penalty.

Fiscal proceedings are not governed by strict res judicata, so an earlier Tribunal order in the same appellant's case did not preclude reconsideration where fresh technical literature, expert affidavits and later judicial pronouncements were produced. The record was sufficient for appellate decision, so remand for de novo adjudication was unnecessary. On excisability, an intermediate product containing sodium bicarbonate and impurities was usable only within manufacture and was not shown to be marketable or commercially known as sodium bicarbonate; in the absence of proof of marketability, it was not liable to central excise duty under the tariff entry. The demand was also beyond the normal limitation period, and penalty could not survive once duty and limitation failed.

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Issues: (i) Whether the earlier Tribunal decision in the appellant's own case bound the present Bench and precluded reconsideration; (ii) whether remand was necessary for de novo adjudication on the basis of additional material; (iii) whether the intermediate product was classifiable as Sodium Bicarbonate under Tariff Item 14AA(1); (iv) whether the demand notice was barred by limitation under Section 11A; and (v) whether penalty was sustainable.

Issue (i): Whether the earlier Tribunal decision in the appellant's own case bound the present Bench and precluded reconsideration.

Analysis: In fiscal matters, there is no strict rule of res judicata. A prior decision may not control a subsequent proceeding where fresh material is brought on record or the legal position has become clearer. The appellant produced technical literature, expert affidavits, and later judicial pronouncements supporting a different view from the earlier order.

Conclusion: The earlier Tribunal decision did not operate as res judicata against the present appeal and was not binding on this Bench.

Issue (ii): Whether remand was necessary for de novo adjudication on the basis of additional material.

Analysis: The additional material consisted of expert affidavits, technical literature, and clarification of the legal position. This material was sufficient for appellate consideration and did not require fresh factual enquiry at the original stage. The Revenue was given opportunity to rebut but did not file counter-affidavits.

Conclusion: Remand was not necessary and the matter was fit for decision on the existing record.

Issue (iii): Whether the intermediate product was classifiable as Sodium Bicarbonate under Tariff Item 14AA(1).

Analysis: Excise duty can be levied only on goods that are marketable or known in the market as goods, unless the tariff itself provides a specific definition. The evidence showed that the intermediate product was a crude mixture containing Sodium Bicarbonate and impurities, usable only within the manufacturing process, and not bought or sold in the market as Sodium Bicarbonate. The department adduced no evidence of marketability. The technical material and expert evidence supported the conclusion that the product was not commercially identifiable as Sodium Bicarbonate.

Conclusion: The intermediate product was not excisable as Sodium Bicarbonate under Tariff Item 14AA(1).

Issue (iv): Whether the demand notice was barred by limitation under Section 11A.

Analysis: The department had knowledge of the dispute from the beginning, and the controversy was allowed to continue without timely adjudication or provisional assessment. The necessary elements for invoking the longer limitation period were not established on the record. The notice was issued beyond the normal period.

Conclusion: The demand was time-barred.

Issue (v): Whether penalty was sustainable.

Analysis: Once the demand itself failed on merits and limitation, no basis remained for imposing penalty in the circumstances of the case.

Conclusion: The penalty was unsustainable and was set aside.

Final Conclusion: The appellant succeeded on the core excisability issue, and the consequential demand and penalty could not stand.

Ratio Decidendi: An intermediate product is not liable to central excise duty unless it is marketable or otherwise identifiable as goods in the market, and where the department fails to prove marketability, duty, limitation-based demand, and penalty cannot be sustained.

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