Clarificatory circulars cannot apply before a tariff entry's commencement; taxability must be tested for the relevant assessment year.

A clarificatory circular relating to a newly introduced tariff entry cannot be applied to assessment years before that entry came into force. The Tribunal erred in treating computer printer ribbons as taxable under item 128 of the First Schedule for an assessment year preceding 1 April 1992, because that entry was introduced only from that date. The circular could not govern the earlier year, and the Tribunal's order was therefore unsustainable. The matter was left to the assessing authority to determine taxability afresh in accordance with law, independent of the circular.

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Issues: Whether the Tribunal was justified in applying the Board's circular and treating computer printer ribbons as taxable under item 128 of the First Schedule for an assessment year prior to 1992-93.

Analysis: The circular relied on by the Tribunal explained item 128 of the First Schedule, but item 128 itself was introduced only with effect from 1 April 1992. A clarification of that entry could therefore operate only from the date on which the entry came into force. The Court did not decide whether the circular correctly stated the scope of the entry or whether the Board had power to issue such a clarification in the present proceedings. It held only that the Tribunal erred in applying the circular to an earlier assessment year.

Conclusion: The Tribunal's order was unsustainable, and the matter could not be decided on the basis of the circular for the assessment year 1991-92.

Final Conclusion: The Tribunal's decision was set aside, and the assessing authority was left to determine the taxability of computer ribbons afresh in accordance with law, independently of the Tribunal's reliance on the circular.

Ratio Decidendi: A clarificatory circular relating to a newly introduced tariff entry cannot be applied to assessment years preceding the entry's commencement.

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