Product classification and test evidence need fresh review where limitation and Chapter 31 criteria remain unresolved.

Classification of the product, limitation for duty demand, and adequacy of testing required fresh examination because the lower authority addressed only classification and gave no clear finding on invocation of the extended period. The test report was also insufficient in substance, as it did not answer all queries in the test memo and the record did not explain why further testing was not pursued. The matter was therefore sent back for reconsideration after examining the unanswered test issues, similarity with earlier products, the NPK requirement for Chapter 31 classification, supporting certification, and the limitation question, with observance of natural justice.

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Issues: Whether the impugned order sustaining classification of the product and the related duty demand should be set aside and the matter remanded for fresh consideration on classification, limitation, and adequacy of testing.

Analysis: The lower authority decided only the classification controversy and did not return a clear finding on invocation of the extended period for demand. The challenge to the test report also remained unaddressed in substance, as the report did not answer all queries raised in the test memo and the record did not show why further testing was not pursued. Since these omissions went to the root of the controversy, the matter required reconsideration after examining the relevance of the unanswered test queries, the similarity with earlier products, the NPK requirement for classification under Chapter 31, the availability of supporting certification, and the question of limitation.

Conclusion: The impugned order was set aside and the matter was remanded for fresh decision after due consideration of the unresolved issues and observance of natural justice.

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