Case Note & Summary
The case involved multiple appeals concerning the entitlement of Hindustan Zinc Ltd. and other respondents to Modvat/Cenvat Credit for inputs used in the manufacture of exempted final products, specifically sulphuric acid. The appeals arose from a judgment of the Rajasthan High Court that had ruled in favor of the respondents against the Revenue's demand for excise duty under Rule 57CC of the Central Excise Rules. The core issue was whether the respondents were liable to pay 8% excise duty on sulphuric acid sold to fertilizer plants under exemption notifications. The respondents contended that sulphuric acid was a by-product of zinc production and that the imposition of duty would defeat the purpose of the exemption granted to fertilizers. The High Court had allowed the writ petitions filed by the respondents, interpreting Rule 57CC in their favor. The Revenue challenged this interpretation, arguing that the respondents failed to maintain separate accounts for inputs used in dutiable and exempted products. The Supreme Court analyzed the manufacturing processes and the nature of sulphuric acid as a by-product, ultimately agreeing with the High Court's interpretation that the requirements of Rule 57CC were not applicable. The court emphasized that the entire quantity of zinc concentrate was utilized in producing zinc, and thus, maintaining separate records for sulphuric acid was unnecessary. The court dismissed the appeals, affirming the High Court's decision and rejecting the Revenue's arguments regarding the applicability of Rule 57CC and the interpretation of by-products. The court also addressed the procedural aspect of the writ petitions, stating that the challenge to the vires of Rule 57CC justified the High Court's jurisdiction at the show cause stage. Consequently, the Supreme Court upheld the High Court's ruling and dismissed the Revenue's appeals with costs.
Headnote
A) Excise Duty - Cenvat Credit - Entitlement on By-Products - Central Excise Act, 1944, Rule 57CC - The court held that the respondents were entitled to Cenvat Credit on inputs used in the manufacture of sulphuric acid, treated as a by-product, and that Rule 57CC did not apply as the entire quantity of zinc concentrate was consumed in the production of zinc, not sulphuric acid (Paras 20-30).
Issue of Consideration
Whether the respondents are entitled to Modvat/Cenvat Credit on inputs used in the manufacture of exempted final products and the applicability of Rule 57CC.
Final Decision
The Supreme Court dismissed the appeals filed by the Revenue, affirming the High Court's ruling that the respondents were entitled to Cenvat Credit on inputs used in the manufacture of sulphuric acid, treated as a by-product, and that Rule 57CC did not apply.
Law Points
- Cenvat Credit
- Modvat Credit
- Excise Duty
- By-Product
- Separate Accounts
- Rule 57CC
- Rule 57D



