Carbon paper classification under Tariff Item 17(2) and excise limitation on demand period clarified under binding precedent.

Carbon paper was held to fall under Tariff Item 17(2) of the erstwhile Central Excise Tariff because that classification had already been settled by binding precedent, so the contrary Tribunal view under Tariff Item 68 could not stand. The demand for the period beyond six months before the notice dated 1 September 1980 was also barred by limitation, as the demand followed the classification determination and had to comply with the applicable statutory period. The result was that the assessee lost on classification but succeeded on the limitation issue.

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Issues: (i) Whether carbon paper was classifiable under Tariff Item 17(2) or Tariff Item 68 of the erstwhile Central Excise Tariff. (ii) Whether the demand for the period preceding six months from the notice dated September 1, 1980 was barred by limitation.

Issue (i): Whether carbon paper was classifiable under Tariff Item 17(2) or Tariff Item 68 of the erstwhile Central Excise Tariff.

Analysis: The classification of carbon paper had already been authoritatively settled by a binding decision holding that carbon paper falls under Tariff Item 17(2). Once that position stood concluded, the contrary view taken by the Tribunal could not be sustained.

Conclusion: The finding that carbon paper was classifiable under Tariff Item 68 was set aside and the classification under Tariff Item 17(2) was upheld, against the assessee.

Issue (ii): Whether the demand for the period preceding six months from the notice dated September 1, 1980 was barred by limitation.

Analysis: The demand was raised only after the Assistant Collector's order determining classification had been passed. Until that determination, the issue of classification had not been finally decided, and the later notice could not enlarge the permissible period beyond the statutory limitation already applicable to the demand.

Conclusion: The demand for the period beyond six months prior to the notice dated September 1, 1980 was barred by limitation, in favour of the assessee.

Final Conclusion: The appeals succeeded only to the extent of restoring the classification of carbon paper under Tariff Item 17(2), while the limitation finding against the revenue was maintained.

Ratio Decidendi: Where the classification of a product is already settled by binding precedent, a contrary tribunal view cannot stand, and a duty demand must still conform to the applicable limitation period counted from the legally relevant notice.

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