Exemption for runners and risers: later notification cannot impose duty where earlier exemption already applies.

Runners and risers arising in the manufacture of steel ingots from old iron or steel melting scrap were treated as covered by Notification No. 237 of 75 because steel ingots and steel melting scrap fell within the same tariff entry and the manufacture process did not justify denying the exemption. Notification No. 16 of 79 was read as wider in scope and not as imposing duty on goods already exempt under the earlier notification. The stated principle is that a later exemption notification cannot be construed to withdraw, postpone, or negate an exemption already available under an earlier notification where the goods remain within its coverage.

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Issues: (i) Whether runners and risers arising in the manufacture of steel ingots from old iron or steel melting scrap were covered by Notification No. 237 of 75 and entitled to exemption from duty. (ii) Whether Notification No. 16 of 79 could be construed to deny or postpone exemption so as to levy duty on goods already exempt under Notification No. 237 of 75.

Issue (i): Whether runners and risers arising in the manufacture of steel ingots from old iron or steel melting scrap were covered by Notification No. 237 of 75 and entitled to exemption from duty.

Analysis: Item 26 of the Central Excise Tariff treated steel ingots and steel melting scrap as part of the same tariff entry. Since the ingots manufactured with the aid of electric furnace were exempt under Notification No. 237 of 75, the same exemption could not reasonably be denied to the steel melting scrap, including runners and risers, generated in the course of that manufacture.

Conclusion: The runners and risers were covered by the exemption under Notification No. 237 of 75.

Issue (ii): Whether Notification No. 16 of 79 could be construed to deny or postpone exemption so as to levy duty on goods already exempt under Notification No. 237 of 75.

Analysis: Notification No. 16 of 79 was considered wider in scope and was not treated as creating a duty liability on goods that were already exempt under the earlier notification. It could not be interpreted as having the effect of levying duty on runners and risers that had already enjoyed exemption under Notification No. 237 of 75.

Conclusion: Notification No. 16 of 79 did not take away or postpone the exemption already available under Notification No. 237 of 75.

Final Conclusion: The impugned order-in-appeal was set aside and the revision application was allowed, with the exemption held applicable to the disputed runners and risers.

Ratio Decidendi: A subsequent exemption notification cannot be construed to impose duty on goods that are already exempt under an earlier notification, especially where the tariff entry and the manufacturing process show the goods to be covered by the earlier exemption.

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