Clarificatory excise notification on embroidery machines confirms duty computation by one roller, supporting retrospective application.

For embroidery machines under the special excise procedure, duty computation was to be based on one roller only, because the departmental trade notice and the notification defined "meter length" by reference to the distance between the first and last needle of a single roller. The notification was treated as clarificatory, so it applied to the existing understanding of the scheme retrospectively. On that construction, the challenge to the computation method failed and the demand did not survive.

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Issues: Whether the duty on embroidery machines under the special procedure was to be computed on the basis of the length of one roller only, and whether the subsequent notification clarifying the meaning of "meter length" could be applied retrospectively.

Analysis: The dispute arose under the special duty procedure for embroidery machines. The Tribunal noted that the departmental trade notice had consistently stated that the two rollers of an embroidery machine could not be treated as two machines and that duty was to be computed on the basis of the length of one roller. It also noted that Notification No. 15/98-C.E. (N.T.) dated 02.06.1998 defined "meter length" by reference to the distance between the first and last needle of only one roller of the machine, and that the notification was clarificatory in nature. The challenge to the computation method was found to be contrary to the trade notice and there were no other surviving grounds to support the demand.

Conclusion: The machine length was to be taken with reference to one roller only, and the clarificatory notification supported that construction retrospectively; the Revenue's appeal therefore failed.

Final Conclusion: The demand as confirmed in the original order did not survive, and the assessee's position on computation of duty was upheld.

Ratio Decidendi: A clarificatory notification explaining the method of computation under a special excise procedure applies to the existing understanding of the provision, and duty computation must follow the departmental interpretation consistently applied to the machine design in question.

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