Excise classification of pump rotors and stators: contrary duty notices could not survive after the issue was settled earlier.

Rotors and stators manufactured for use in monoblock pumps were treated as component parts classifiable under Tariff Item 30D, not Tariff Item 30A. The classification dispute was already concluded against the revenue in connected excise proceedings, so the department could not issue contrary show cause notices on the same goods and duty basis. The text also notes that, under the post-1 March 1986 tariff structure, rotors and stators suitable for use with electric motors would fall under Heading 85.03. On that reasoning, the impugned notices were held unsustainable and were quashed.

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Issues: Whether rotors and stators manufactured for use in monoblock pumps were classifiable under Tariff Item 30D and not Tariff Item 30A, and whether the show cause notices demanding duty under Tariff Item 30A could survive.

Analysis: The dispute turned on the proper excise classification of rotors and stators used in monoblock pumps. The earlier departmental circular treated such rotors and stators as component parts assessable under Tariff Item 30D, while the later trade notice and the Assistant Collector sought to place them under Tariff Item 30A. The controversy had already been concluded against the revenue in the connected excise proceedings, and the Tribunal had dismissed the assessee's appeal. On that basis, the court treated the classification issue as settled and also noted that, under the post-1 March 1986 tariff structure, rotors and stators as parts suitable for use with electric motors would fall under Heading 85.03.

Conclusion: Rotors and stators used in monoblock pumps were held to fall under Tariff Item 30D and not Tariff Item 30A, and the impugned show cause notices could not survive.

Final Conclusion: The petitions succeeded and the show cause notices were quashed and set aside.

Ratio Decidendi: Where the classification issue has already been concluded in the assessees' excise proceedings, the revenue cannot pursue a contrary show cause notice on the same goods and duty basis.

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