Case Note & Summary
The dispute arose from the levy of additional customs duty on imported asbestos fibre by the Union of India, which the appellants, Hyderabad Industries Ltd., contested. The imports in question occurred prior to 1986, and the appellants argued that the asbestos fibre was a natural mineral and not subject to additional duty as it had not undergone any manufacturing process. The Collector of Central Excise issued a notice asserting that the processed asbestos fibre was liable for excise duty under the Excise Act, leading to the demand for additional customs duty. The High Court upheld this demand, stating that extracting the fibre constituted a manufacturing process. The Supreme Court, upon reviewing the case, referenced its earlier decision which established that the separation of asbestos fibre from rock did not amount to manufacturing, and thus, the imported fibre was not liable for excise duty. The Court clarified that the additional duty under Section 3(1) of the Customs Tariff Act could only be levied if the imported article was produced or manufactured in India. The Court concluded that the appellants were not liable for the additional duty, quashing the demand made by the respondents. However, it decided against refunding the additional duty already paid, citing the principle of unjust enrichment and the lack of evidence that the duty was passed on to customers. The appeals were allowed, and the writ petitions were quashed, with costs borne by the parties.
Headnote
A) Customs Law - Additional Duty of Customs - Liability on Imported Asbestos Fibre - Customs Tariff Act, 1975, Section 3(1) - Court held that the separation of asbestos fibre from rock does not constitute a manufacturing process, thus no additional duty is leviable. The High Court's decision was found erroneous as the imported asbestos fibre was not a new or distinct commodity, and the appellants were not liable to pay additional duty (Paras 1-9).
Issue of Consideration
Whether the appellants were liable to pay additional duty of customs on imported asbestos fibre under Section 3(1) of the Customs Tariff Act, 1975.
Final Decision
The Supreme Court allowed the appeals, quashed the demand for additional duty on imported asbestos fibre, and ruled that the appellants were not liable to pay any additional duty under Section 3 of the Customs Tariff Act. The Court decided against refunding the additional duty already paid, citing unjust enrichment principles.
Law Points
- Customs duty
- additional duty
- excise duty
- manufacturing process
- unjust enrichment



