Machining of steel castings defeats concessional notification benefit, and extended limitation fails absent wilful suppression.

Machining operations that materially alter the form of steel castings take the goods outside a concessional notification limited to castings not subjected to machining or specified surface treatment; knuckles and locks that underwent milling, drilling and boring were therefore not eligible for concessional assessment. The extended period of limitation was also unavailable because the classification lists disclosed the goods, the Department approved the assessments, and the record showed no wilful misstatement or suppression. Mere differences in description in gate passes and invoices, in the context of approved clearances, did not justify invoking the proviso to Section 11A.

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Issues: (i) Whether knuckles and locks supplied to the Railways were eligible for concessional assessment under Notification No. 223/88 dated 23-6-1988. (ii) Whether the extended period for demand could be invoked under the proviso to Section 11A of the Central Excises and Salt Act, 1944.

Issue (i): Whether knuckles and locks supplied to the Railways were eligible for concessional assessment under Notification No. 223/88 dated 23-6-1988.

Analysis: The notification extended concession to castings and cast articles of steel not subjected to machining or surface treatment beyond the limited processes specified in the proviso. The record showed that the disputed items underwent milling, drilling and boring. Those operations were not confined to removal of surface defects or excess material without change in form, and they contributed to finishing and alteration of shape. The goods therefore did not remain within the restricted scope of the notification.

Conclusion: The disputed goods were not eligible for the concessional assessment under Notification No. 223/88 dated 23-6-1988.

Issue (ii): Whether the extended period for demand could be invoked under the proviso to Section 11A of the Central Excises and Salt Act, 1944.

Analysis: The classification lists declared the goods as rough alloy steel castings and claimed the notification benefit, while the Department approved the lists and assessed the RT-12 returns. On the facts, the Department had knowledge of the nature of the clearances and there was no wilful misstatement or suppression by the appellants. Mere change in description in gate passes and invoices in the context of approved assessments did not establish fraud so as to justify the extended period.

Conclusion: The extended period of limitation under the proviso to Section 11A was not available to the Department.

Final Conclusion: The demand was sustained on merits as regards ineligibility for the notification, but the invocation of the extended limitation period failed, resulting in a partial allowance of the appeal.

Ratio Decidendi: Machining operations that alter the form of castings take the goods outside a notification confined to specified limited surface-treatment processes, and the extended limitation period cannot be invoked in the absence of wilful suppression or misstatement when the Department already had knowledge through approved classification and assessments.

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