Official Gazette publication governs when duty-enhancing notifications take effect, making pre-publication excess duty refundable.

A duty-enhancing notification under the Central Excise Act becomes operative only when the statutory publication requirements for the Official Gazette are satisfied. Where publication occurs after the issue date, the enhanced duty cannot be enforced from the earlier date, and duty paid during the intervening period is without authority of law. The excess duty paid before publication is therefore refundable, making rejection of the refund claim unsustainable.

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Issues: Whether the duty-enhancing notifications became effective only upon publication in the Official Gazette, and whether the excess duty paid before such publication was refundable.

Analysis: The applicable legal position was that a notification under Section 5A(5) of the Central Excise Act, 1944 comes into force only when the statutory conditions for its publication are satisfied. Since the notifications were published in the Gazette after their issue dates, the enhanced duty could not be enforced from the earlier issue dates. The excess duty paid for the intervening period was therefore paid without authority of law.

Conclusion: The notifications took effect only from the date of publication in the Official Gazette, and the refund claim for excess duty was admissible in favour of the assessee.

Final Conclusion: The impugned rejection of refund was unsustainable and the assessee's appeal succeeded, carrying the consequential relief available in law.

Ratio Decidendi: A duty-enhancing notification that must comply with statutory publication requirements becomes operative only from the date of such publication, and excess duty paid before that date is refundable.

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