Provisional assessment adjustments permit excess duty correction for billing and calculation errors at final quantification.

In provisional assessment under Rule 9B of the Central Excise Rules, 1944, excess duty paid because of billing errors, short-supply, incorrect duty computation and similar clerical corrections could be adjusted when quantifying the final demand. The material distinction was between reopening the assessable value, which was not permissible after finalisation, and correcting amounts that had no bearing on assessable value, which remained allowable at the quantification stage. Accordingly, the assessee's claim for adjustment of such excess duty was sustainable, and rejection of the claim was not justified.

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Issues: Whether, on finalisation of provisional assessment, the assessee was entitled to adjustment of excess duty paid on account of billing errors, short-supply, incorrect calculation of duty and similar corrections at the stage of quantification of duty.

Analysis: The assessment had been provisionally made under Rule 9B of the Central Excise Rules, 1944 and later finalised. The dispute before the Tribunal was not about altering the basis of assessable value fixed in the finalisation order, but about whether amounts already paid in excess because of clerical and billing-related errors could be adjusted while working out the differential duty. The distinction between finalisation of assessment and subsequent quantification was material: once the assessment was finalised, additions or deductions affecting assessable value could not be reopened, but corrections having no bearing on the assessable value determination could still be considered at the quantification stage.

Conclusion: The assessee was entitled to adjustment of the excess duty paid on account of such errors while quantifying the demand, and the rejection of that claim was unsustainable.

Ratio Decidendi: In provisional assessment cases, amounts representing excess duty paid for reasons unrelated to the determination of assessable value may be adjusted at the stage of duty quantification after finalisation of assessment.

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