Excise refund limitation under Section 11B prevails, and Rule 173-I cannot bypass the statutory refund procedure.

Excise refund claims must be filed within the statutory six-month limitation under Section 11B of the Central Excises and Salt Act, 1944, and departmental authorities cannot grant refund beyond that period on the basis of mistake of law. Rule 173-I cannot be used to bypass the refund procedure where the RT-12 assessment did not disclose an excess payment capable of adjustment as credit. The note distinguishes cases where the assessment itself shows an adjustible excess, and confirms that retrospective reliance on Rule 173-I will not defeat the limitation bar.

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Issues: Whether the refund claim for excise duty was barred by limitation under Section 11B of the Central Excises and Salt Act, 1944, and whether Rule 173-I could be invoked to bypass the refund procedure.

Analysis: The claim related to duty paid for the relevant period but was made after the statutory six-month limit. The Tribunal held that departmental authorities, being creatures of statute, are bound by the limitation prescribed for refund claims and cannot grant relief beyond that period on the ground of mistake of law. It further held that Rule 173-I did not assist the appellants because the RT-12 assessment had not been completed in a manner showing an excess payment capable of adjustment as credit; the situation was therefore unlike the precedent relied upon by the appellants.

Conclusion: The refund claim was rightly rejected as time-barred, and the appeal failed.

Ratio Decidendi: Refund claims before the excise authorities must conform to the statutory limitation under Section 11B, and Rule 173-I cannot be used retrospectively to avoid that limitation where the assessment did not itself disclose an adjustible excess payment.

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