Retrospective exemption refund claims and unjust enrichment under amended refund rules govern final adjudication of pending claims.

A refund claim arising from retrospective exemption was held not to be barred by limitation because the special six-month period under the validating statute was computed from 08-09-1986, and the claim was filed within time. The pending refund dispute was also held to be governed at final adjudication by the amended refund provisions, so Section 11B(2) and the doctrine of unjust enrichment applied when finalising the claim.

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Issues: (i) Whether the refund claim arising from retrospective exemption was barred by limitation; (ii) whether the amended provisions relating to unjust enrichment in refund matters applied while finalising the claim.

Issue (i): Whether the refund claim arising from retrospective exemption was barred by limitation.

Analysis: The refund claim was covered by the Central Duties of Excise (Retrospective Exemption) Act, 1986. Under that Act, refund claims could be filed within six months from the date of commencement, and the relevant period was computed from 08-09-1986, when the Act received Presidential assent. On that basis, the claim was within time.

Conclusion: The refund claim was not barred by limitation.

Issue (ii): Whether the amended provisions relating to unjust enrichment in refund matters applied while finalising the claim.

Analysis: The pending appeal kept the refund dispute alive until final disposal, and the amended refund provisions under Section 11B of the Central Excises and Salt Act, 1944 therefore governed the finalisation of the claim.

Conclusion: The amended provisions of Section 11B(2) applied to the refund claim.

Final Conclusion: The appeal failed, but the refund claim was to be examined and finalised in accordance with the amended refund provisions, including unjust enrichment.

Ratio Decidendi: A refund claim arising from retrospective exemption is not time-barred if filed within the special limitation period under the validating statute, and the amended refund provisions relating to unjust enrichment apply when the claim remains pending for final adjudication.

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