Provisional excise assessment allows recovery of differential duty after finalisation and supports enforcement of related bank guarantees.

In provisional excise assessment under Rule 173-B and Rule 9-B, clearances of block boards were treated as provisional because the classification list was not finally approved and the RT-12 returns recorded provisional assessment. On finalisation, the differential duty became recoverable under the provisional assessment scheme without a separate notice under Section 11-A, because the amount paid remained provisional until adjustment after final assessment. A bank guarantee furnished against the duty liability was also held enforceable once the liability was finally determined, as no basis was shown to restrain invocation on grounds of arbitrariness or mala fides.

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Issues: (i) Whether the clearances of block boards during the relevant period were made under provisional assessment in accordance with Rule 173-B and Rule 9-B of the Central Excise Rules, 1944; (ii) Whether recovery of the differential excise duty after final assessment required a notice under Section 11-A of the Central Excise and Salt Act, 1944; (iii) Whether the department could invoke and encash the bank guarantee furnished by the assessee.

Issue (i): Whether the clearances of block boards during the relevant period were made under provisional assessment in accordance with Rule 173-B and Rule 9-B of the Central Excise Rules, 1944.

Analysis: The classification list filed by the assessee was not finally approved because of pending verification. The proper officer directed that clearances under the classification list would be assessed provisionally under Rule 9-B pending final approval. The monthly RT-12 returns also contained endorsements showing provisional assessment. The procedure contemplated by Rule 173-B(2A) and Rule 9-B was therefore followed.

Conclusion: The clearances were made under provisional assessment.

Issue (ii): Whether recovery of the differential excise duty after final assessment required a notice under Section 11-A of the Central Excise and Salt Act, 1944.

Analysis: Section 11-A applies to cases of non-levy, short levy, non-payment, short payment, or erroneous refund. In the case of provisional assessment, the statute itself treats the date of adjustment after final assessment as the relevant date. Until final assessment and adjustment, the amount paid is provisional, and the differential duty becomes payable under the scheme of Rule 9-B without a separate notice under Section 11-A for that differential amount. The duty had been finally quantified after observance of natural justice and after determination of classification.

Conclusion: Section 11-A did not bar recovery of the differential duty arising from finalisation of the provisional assessment.

Issue (iii): Whether the department could invoke and encash the bank guarantee furnished by the assessee.

Analysis: The bank guarantee was furnished as security for the duty arrears and was linked to the outcome of the dispute. Once the duty was found payable and the assessee did not show that a lesser amount was due or that no amount was due, there was no basis to restrain invocation of the guarantee on grounds of mala fides or arbitrariness.

Conclusion: The bank guarantee could be invoked and encashed.

Final Conclusion: The appeal failed on all substantive grounds and the dismissal of the writ petition was upheld, with the restraint on encashment lifted and the award of costs maintained.

Ratio Decidendi: In a case of provisional excise assessment, the differential duty becomes recoverable on final assessment without resort to Section 11-A for the provisional shortfall, and a bank guarantee given for the duty liability may be enforced once the liability is finally determined.

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