Specific tariff classification for signal generators prevails over general measuring-instrument heading, with duty liability and penalty sustained.

Signal generators were held to fall under Heading 8543.20 of the Central Excise Tariff as specifically described electrical apparatus with individual function, and not under the more general Heading 9031.00 for measuring or checking instruments. The classification dispute was resolved in favour of the specific tariff entry, with the competing heading rejected. On that basis, the duty demands were recoverable, and the penalty for clearance of goods without payment under the correct heading was sustained. The appeals therefore failed, and the classification, duty liability, and penalty were affirmed.

---

---

Issues: (i) Whether signal generators were correctly classifiable under Heading 8543.20 of the Central Excise Tariff Act, 1985 instead of Heading 9031.00; (ii) Whether duty demands and penalty were sustainable in view of the classification dispute.

Issue (i): Whether signal generators were correctly classifiable under Heading 8543.20 of the Central Excise Tariff Act, 1985 instead of Heading 9031.00.

Analysis: Heading 8543.20 specifically includes signal generators and covers electrical appliances and apparatus with individual function not falling under another more specific heading. The products in question were described and used as apparatus for generating electrical signals of known waveform and magnitude at assignable frequency, and their characteristics brought them within the specific description of signal generators. They were not treated as general measuring or checking instruments falling under Chapter 90.

Conclusion: The classification under Heading 8543.20 was upheld and the claim for Heading 9031.00 was rejected.

Issue (ii): Whether duty demands and penalty were sustainable in view of the classification dispute.

Analysis: Since the classification under Heading 8543.20 was found correct, the duty demands based on that heading were held recoverable. The assessee had earlier obtained a different classification but, after the classification position changed and the new classification list was filed and upheld, there was no basis to interfere with the penalty imposed for clearance of goods without paying duty under the correct heading.

Conclusion: The duty demands and penalty were sustained.

Final Conclusion: The appeals failed in full, and the classification, duty demands, and penalty were affirmed against the assessee.

Ratio Decidendi: Where goods are specifically described in the tariff under a particular heading, that specific classification prevails over a more general competing heading, and the consequences of clearance under an incorrect classification, including duty liability and penalty, may follow.

---