Limitation and tariff classification of condensate and lean gas: prior disclosure defeated extended period, and product character governed heading choice.

Prior departmental knowledge of the products and their clearances negated suppression and wilful mis-declaration, so the extended limitation period under the Central Excise Act could not be invoked for condensate and lean gas. Condensate was treated as crude mineral oil under Heading 2709.00 because the relevant tariff entry for Heading 2710 excluded crude mineral oil at the main-heading level. Residual lean gas retained the character of natural gas after LPG extraction and fell under Heading 2711.21 rather than the residuary gas entry. On these grounds, the demands and penalty orders were set aside and the assessee succeeded.

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Issues: (i) whether the demand of duty on condensate was barred by limitation for want of suppression or wilful mis-declaration; (ii) whether condensate was classifiable under Heading 2710 or as crude mineral oil under Heading 2709.00; (iii) whether lean gas remained natural gas classifiable under Heading 2711.21 and whether the demand on lean gas was barred by limitation.

Issue (i): Whether the demand of duty on condensate was barred by limitation for want of suppression or wilful mis-declaration.

Analysis: The departmental correspondence showed that the emergence of condensate and its handling were known to the department well before the show cause notice. The assessee had been required to maintain accounts, produce details, and seek clarification, which negatived the allegation that production was suppressed or that there was any wilful mis-declaration. In such circumstances, the extended period under the proviso to Section 11A of the Central Excise Act, 1944 could not be invoked.

Conclusion: The demand for condensate for the earlier period was barred by limitation and was unsustainable against the assessee.

Issue (ii): Whether condensate was classifiable under Heading 2710 or as crude mineral oil under Heading 2709.00.

Analysis: The Board's earlier clarification treated condensate as petroleum in its natural state and as crude oil, classifiable as crude mineral oil. Heading 2710 specifically excluded crude mineral oil, and the presence of the motor spirit description did not reintroduce a product that was already excluded at the main-heading level. On that basis, the impugned classification under Heading 2710 could not stand.

Conclusion: Condensate was not classifiable under Heading 2710 and was to be treated as crude mineral oil under Heading 2709.00, in favour of the assessee.

Issue (iii): Whether lean gas remained natural gas classifiable under Heading 2711.21 and whether the demand on lean gas was barred by limitation.

Analysis: The assessee had earlier informed the department that the LPG plant would recover LPG and that the residual gas would be supplied as lean gas. That disclosure negatived suppression and excluded resort to the extended limitation period. On merits, the residual product retained the character of natural gas after extraction of liquefiable components and therefore belonged under the tariff entry for natural gas rather than the residuary entry for other gases.

Conclusion: The demand on lean gas was barred by limitation and, on merits, lean gas was classifiable under Heading 2711.21, not under Heading 2711.29, in favour of the assessee.

Final Conclusion: The duty demands and penalty orders under challenge were set aside, and all the appeals were allowed in favour of the assessee.

Ratio Decidendi: Where the department had prior knowledge of the product and its clearances, the extended period of limitation under Section 11A cannot be invoked; and a product expressly treated as crude mineral oil cannot be brought under a tariff heading that excludes crude, while a residual gas retaining the character of natural gas must be classified as such.

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