Strict construction of exemption notifications bars importing ISI tolerance limits; test reports and limitation date supported the duty demand.

Exemption notifications for aluminium circles were construed strictly, so the ISI tolerance limit could not be imported into the notification unless expressly provided; the goods were found to exceed the prescribed thickness and the exemption claim failed. Test reports for a later sample were treated as evidence of the condition of goods in the earlier relevant period, as no rebuttal showed a material change in manufacture. No further re-test of the duplicate and triplicate samples was required because the original sample had been analysed and no defect in sampling or testing was shown. Limitation was assessed by reference to the show-cause notice date, so deletion of the rule later did not bar the demand.

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Issues: (i) whether the tolerance limit prescribed by the ISI standard could be applied to claim exemption under the notification for aluminium circles; (ii) whether the test reports could be treated as retrospectively establishing the thickness of goods manufactured earlier; (iii) whether the second and third samples ought to have been sent for re-test before confirming duty; and (iv) whether the demand was barred by limitation in view of the subsequent deletion of Rule 10.

Issue (i): whether the tolerance limit prescribed by the ISI standard could be applied to claim exemption under the notification for aluminium circles.

Analysis: The exemption under the notification depended on the circles falling within the specified thickness range. The Tribunal held that exemption notifications must be construed strictly and that a tolerance factor mentioned in ISI standards could not be imported into the notification unless the notification itself provided for it. The test reports showed that the goods exceeded the prescribed thickness.

Conclusion: The tolerance limit could not be applied, and the claim to exemption failed on this ground.

Issue (ii): whether the test reports could be treated as retrospectively establishing the thickness of goods manufactured earlier.

Analysis: The Tribunal applied the principle that a test at a particular point of time raises a presumption that the condition so found existed both before and after that point, unless rebutted by proof of earlier different conditions or a material change in manufacture. No such rebuttal was established.

Conclusion: The test reports could be relied upon to support the demand for the relevant earlier period.

Issue (iii): whether the second and third samples ought to have been sent for re-test before confirming duty.

Analysis: The original remnant sample had already been sent for analysis and no specific request had been made for testing the duplicate and triplicate samples. The Tribunal also noted that the original sample was available and there was no defect shown in the sample draw or in the test reports, apart from the rejected tolerance contention.

Conclusion: No further re-test of the second and third samples was required.

Issue (iv): whether the demand was barred by limitation in view of the subsequent deletion of Rule 10.

Analysis: Following the earlier ruling relied upon by the Tribunal, the material date for limitation was the date of issue of the show cause notice, and later deletion of the rule did not extinguish proceedings initiated earlier under the then-existing law.

Conclusion: The limitation plea was rejected.

Final Conclusion: The exemption claim and all ancillary objections were rejected, and the duty demand was sustained.

Ratio Decidendi: Exemption notifications are to be construed strictly, a tolerance standard in another code is not imported unless the notification so provides, and limitation is governed by the law in force on the date of the show cause notice.

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