Prospective classification rules and composite machine principles required fresh refund reconsideration under the correct tariff provision.

Interpretative rules that were not in force on the date of import could not be applied to deny refund on the basis adopted by the lower authorities. The imported diesel engine, generator and switch board were also treated as a composite machine functioning together to generate electricity, making the relevant tariff section note controlling for classification. The impugned order was set aside and the refund claim was remanded to the adjudicating authority for fresh consideration under the correct tariff provision.

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Issues: Whether the pre-28-2-1986 import of a diesel engine, generator and switch board could be classified by applying the interpretative rules that came into force on 28-2-1986, and whether the refund claim had to be reconsidered under the relevant section note for composite machines.

Analysis: The lower authorities had denied refund by relying on Rule 2(a) read with Rule 3(b) of the Interpretative Rules, but those rules were not in force on the date of import. That basis for classification could not therefore be sustained. At the same time, the earlier tariff structure also did not support the assessee's claim to invoke Section 19 of the Customs Act on that footing. The goods were, however, a composite machine made up of three components working together for the principal function of generating electricity, and the governing section note for Section XVI was directly relevant to their classification.

Conclusion: The impugned order was set aside and the refund claim was remanded to the adjudicating authority for fresh in accordance with the relevant section note.

Final Conclusion: The appeal succeeded to the extent that the classification and refund issue was reopened and sent back for reconsideration under the correct tariff provision.

Ratio Decidendi: A classification rule that was not in force on the date of import cannot be applied to deny refund, and a composite machine must be classified by reference to the tariff provision governing its principal function.

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