Retrospective exemption amendments cannot enlarge earlier excise duty liability; Revenue's challenge failed for the pre-amendment period.

An amending exemption notification could not be applied retrospectively to increase excise duty liability for clearances made before the amendment date, even though the underlying statutory proviso was stated to be retrospective. The earlier period therefore continued to be governed by the unamended notification regime, and the demand for that period was not sustainable. On that basis, the assessee's position was upheld for the pre-amendment period and the Revenue's appeal failed.

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Issues: Whether the amendment to the exemption notification and the proviso to Section 3(1) of the Central Excise Act could operate retrospectively so as to alter the duty liability for clearances made before 16-9-1999.

Analysis: The appeal was tested against the larger bench view that Notification No. 38/99-C.E., dated 16-9-1999, amending Notification No. 2/95-C.E., could not be given retrospective effect. On that basis, the retrospective amendment to Section 3(1) did not affect the period prior to 16-9-1999, and the duty position for that period remained governed by the unamended notification regime.

Conclusion: The demand for the earlier period was not sustainable on the Revenue's case, and the appeal failed.

Final Conclusion: The duty dispute was resolved in favour of the assessee's position for the pre-16-9-1999 period, resulting in dismissal of the Revenue's appeal.

Ratio Decidendi: An amending notification that operates prospectively cannot be applied retrospectively to enlarge duty liability for a prior period, even where the underlying statutory amendment is retrospective.

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