Captive-consumption valuation and supplementary-invoice CENVAT credit turn on statutory regime and substantive duty-paid entitlement.

For captive-consumption valuation, the applicable method depends on the statutory regime in force: for the earlier period, cost of production had to include the overhead elements required by the 1996 Board Circular and Rule 6(b)(ii), and the assessee's omission of mandatory cost components justified the department's computation and supported suppression for the first notice period. For later periods, valuation had to be recomputed on the basis of cost of production under the applicable post-01/07/2000 regime, with CAS-4 principles relevant to the exercise. Credit of duty paid on supplementary invoices for inter-unit transfers was held admissible, as Rule 7(1)(b) could not curtail the substantive CENVAT entitlement where duty had been paid on reassessment.

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Issues: (i) whether the extended period of limitation and penalty under Section 11AC could be invoked for undervaluation of captively consumed goods for the period up to 30/06/2000 and for later periods covered by subsequent show-cause notices; (ii) whether, for valuation of captively consumed goods, the assessable value had to be determined under the 1996 Board Circular and Rule 6(b)(ii) of the Central Excise (Valuation) Rules, 1975 for the earlier period, and under CAS-4 based costing for the later period; (iii) whether credit of duty paid through supplementary invoices on inter-unit transfers was barred under Rule 7(1)(b) of the CENVAT Credit Rules, 2002.

Issue (i): whether the extended period of limitation and penalty under Section 11AC could be invoked for undervaluation of captively consumed goods for the period up to 30/06/2000 and for later periods covered by subsequent show-cause notices.

Analysis: The declarations filed by the assessee were found to omit several overhead components specifically required by the Board Circular dated 30/10/1996, though the assessee represented that it was following that circular. The excluded items were within the exclusive knowledge of the assessee, and the department had accepted only percentage figures until intelligence revealed the understatement. The factual pattern supported suppression despite the plea of revenue neutrality. For the notices issued after the first notice, the same material was already known to the department, so suppression could not be alleged for those subsequent periods.

Conclusion: The extended period and penalty were upheld for the first notice period up to 30/06/2000, but suppression was not available for the later notices. Penalty was not sustainable for the subsequent notices.

Issue (ii): whether, for valuation of captively consumed goods, the assessable value had to be determined under the 1996 Board Circular and Rule 6(b)(ii) of the Central Excise (Valuation) Rules, 1975 for the earlier period, and under CAS-4 based costing for the later period.

Analysis: For the pre-01/07/2000 period, the governing regime was Section 4(1)(b) read with Rule 6(b)(ii) and the Board Circular dated 30/10/1996, under which the value had to be derived from the cost of production including the elements specified in the circular. The assessee had not shown that the challenged overheads were unrelated to the goods under assessment, nor produced plant-wise or product-wise details to displace the department's computation. For the post-01/07/2000 period, the applicable regime under Rule 8 required valuation on the basis of cost of production, and the later CAS-4 methodology was held relevant for pending computation of duty.

Conclusion: The valuation adopted for the earlier period was sustained, while for the later period the matter was required to be recomputed on CAS-4 principles.

Issue (iii): whether credit of duty paid through supplementary invoices on inter-unit transfers was barred under Rule 7(1)(b) of the CENVAT Credit Rules, 2002.

Analysis: The credit issue was governed by the Karnataka High Court view that Rule 7 is illustrative and cannot whittle down the substantive credit entitlement under Rule 3 where duty has been paid on reassessment or on departmental detection. The supplementary-invoice credit was therefore not to be denied merely because the duty arose from reworking of assessable value. The contrary arguments were held distinguishable on facts.

Conclusion: Credit on supplementary invoices was held admissible and the Revenue's appeal on this issue was dismissed.

Final Conclusion: The valuation dispute was sustained for the earlier period, later periods were left to be recomputed on the CAS-4 basis, penalty followed the finding of suppression only to the extent upheld, and the credit appeal failed.

Ratio Decidendi: For captive-consumption valuation, the applicable costing method depends on the statutory regime in force, while suppression is established where the assessee under-declares mandatory cost elements within its exclusive knowledge; credit on supplementary invoices for duty already paid is not denied merely because the transfer is inter-unit and not a sale.

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