Exemption notification scope and limitation period: concessional duty was denied after tariff amendment, but demand was confined to the normal period.

An exemption notification confined to copper under Item 26A sub-items (1) and (1a) did not extend to the newly inserted sub-item (1b) for waste and scrap after the 1-3-1981 tariff amendment, so concessional duty was unavailable from that date. Full disclosure in approved classification lists and RT-12 returns, showing the use of waste and scrap in manufacture, meant suppression with intent to evade duty was not established. The extended limitation period was therefore unavailable, and the duty demand was restricted to the normal six-month period from the show cause notice.

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Issues: (i) whether the appellant was entitled to the concessional duty benefit under Notification No. 74/65-C.E. after the amendment to Tariff Item 26A with effect from 1-3-1981; and (ii) whether the duty demand was confined to the normal period in the absence of suppression of facts.

Issue (i): whether the appellant was entitled to the concessional duty benefit under Notification No. 74/65-C.E. after the amendment to Tariff Item 26A with effect from 1-3-1981.

Analysis: The notification granted concessional duty for sheets, circles, strips and foils in the manufacture of which copper in any form was used, and its explanation covered stocks of copper under sub-items (1) and (1a) of Item 26A. After 1-3-1981, Item 26A was amended to introduce sub-item (1b) for waste and scrap, with a distinct explanation defining waste and scrap as material fit only for recovery of metal or use in chemicals. As the notification did not extend its explanation to sub-item (1b), the amended tariff regime excluded the appellant from the benefit from that date.

Conclusion: The appellant was not entitled to the concessional benefit from 1-3-1981 onwards.

Issue (ii): whether the duty demand was confined to the normal period in the absence of suppression of facts.

Analysis: The classification lists were filed and approved, the raw material as waste and scrap was disclosed, and monthly RT-12 returns also recorded the use of waste and scrap in manufacture. On these facts, the department could not establish suppression with intent to evade duty, so the extended period was unavailable.

Conclusion: The demand was limited to six months from the date of the show cause notice.

Final Conclusion: The appeal succeeded only to the extent of restricting the demand to the normal limitation period, while the concessional duty benefit was denied from 1-3-1981 onwards.

Ratio Decidendi: Where an exemption notification is confined to specified tariff sub-items, its benefit cannot be extended to a newly introduced sub-item absent express inclusion, and full disclosure in approved classification lists and returns negatives suppression for invoking the extended limitation period.

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