Approved classification lists cannot be reopened absent fraud, misrepresentation, or concealment of material facts under excise law.

An approved classification list under Rule 173B of the Central Excise Rules, 1944 cannot be reopened merely because the department later adopts a different view on exemption entitlement under an amended notification. Where the assessee disclosed the relevant notifications and answered the authority's queries, and the record shows no fraud, misrepresentation, or concealment of material facts, the approval remains protected. The authority's power to modify or recall the approved list is confined to cases where approval was obtained by fraud, misrepresentation, or concealment. In the absence of such vitiating factors, a show cause notice to revise the approval is without jurisdiction and the consequential demand is not recoverable.

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Issues: Whether the authority had jurisdiction to issue a show cause notice for modifying an approved classification list in the absence of fraud, misrepresentation or concealment of facts by the assessee.

Analysis: The approval of the classification list had been granted after the assessee disclosed the relevant notifications and supplied clarifications sought by the authority. The record did not show any specific misrepresentation, concealment of fact, or fraud in obtaining the approval. In such circumstances, an approved classification list cannot be reviewed or recalled merely because the department later takes a different view on entitlement under the amended notification. The authority's power to modify an approved list is confined to cases where the approval was procured by fraud, misrepresentation, or concealment.

Conclusion: The show cause notice lacked jurisdiction and was liable to be quashed. The consequential demand could not be recovered.

Ratio Decidendi: An approved classification list under Rule 173B of the Central Excise Rules, 1944 cannot be reopened or reviewed merely on a later change of view on exemption entitlement; it can be disturbed only where the approval was obtained by fraud, misrepresentation, or concealment of material facts.

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