Excise set-off and proforma credit principles: exemption applies before special duty, and no input-output correlation was required.

A writ petition was maintainable against an administrative excise directive where statutory appeal and revision against subordinate orders were not an equally efficacious remedy to challenge the directive itself. Under Section 50 of the Finance Act, 1982, exemption by way of set-off had to be applied first, so special duty of excise was computed only on the balance remaining after the exemption. The proforma credit scheme under Notification No. 201/79-C.E. and Rule 56-A did not require correlation between particular inputs and exempted final products; in the absence of clear language, no input-output nexus could be implied. The challenged directive and consequential directions were therefore treated as unsustainable.

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Issues: (i) Whether the writ petition was maintainable despite the availability of statutory remedies under the Act; (ii) Whether, under Section 50 of the Finance Act, 1982, exemption by way of set-off was to be given effect to before computing special duty of excise; (iii) Whether the credit mechanism under Notification No. 201/79-C.E. and Rule 56-A of the Central Excise Rules, 1944 required correlation between inputs and the exempted final products.

Issue (i): Whether the writ petition was maintainable despite the availability of statutory remedies under the Act.

Analysis: The impugned clarification emanated from the highest administrative authority under the excise regime and was treated by subordinate officers as controlling their approach. In that setting, the availability of appeal and revision against the subordinate order did not furnish an equally efficacious remedy against the challenged directive itself.

Conclusion: The writ petition was maintainable.

Issue (ii): Whether, under Section 50 of the Finance Act, 1982, exemption by way of set-off was to be given effect to before computing special duty of excise.

Analysis: The expression "read with any notification for the time being in force" in Section 50(1) was construed to mean that the amount "so chargeable" had first to be ascertained after applying the exemption notifications. On that reading, special duty was to be computed only on the balance remaining after set-off.

Conclusion: Exemption by way of set-off had to be applied first and special duty of excise computed thereafter.

Issue (iii): Whether the credit mechanism under Notification No. 201/79-C.E. and Rule 56-A of the Central Excise Rules, 1944 required correlation between inputs and the exempted final products.

Analysis: The scheme of proforma credit allowed credit to be taken on receipt of inputs and to be utilised at the stage of clearance without item-wise correlation to particular finished goods. The notification and the rule were treated as self-contained schemes and did not impose a nexus requirement between the inputs and outputs.

Conclusion: No correlation between inputs and outputs was required, and the contrary direction was unsustainable.

Final Conclusion: The challenged directive and consequential directions were held unsustainable, and the petitioners were granted relief on the merits of the excise-duty computation.

Ratio Decidendi: Where a charging provision expressly applies the duty to goods chargeable under the Act read with notifications in force, the exempted amount must be excluded before computing special duty, and a proforma credit scheme cannot be constrained by an implied input-output correlation absent clear statutory language.

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