Taxing statute prevails over trade notice: insulation tape classification, limitation, and penalty were sustained on the facts.

A departmental trade notice cannot override a taxing statute or bind excise authorities under promissory estoppel, so it cannot narrow Tariff Item No. 59. Varnished fibreglass tapes and glass mica tapes were treated as electric insulation tapes because they were coated or impregnated with insulating material, used for covering electric wires and cables, and were not shown on reliable evidence to fall outside the commercial understanding of that description. The demand was held not to be time-barred, with recovery provisions applying on the facts. Penalty and fine were sustained because contravention of the Act and Rules was established and no legal basis for interference was shown.

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Issues: (i) Whether a trade notice could bind the excise authorities or restrict the scope of Tariff Item No. 59 by promissory estoppel; (ii) Whether the varnished fibreglass tapes and glass mica tapes were classifiable as electric insulation tapes under Tariff Item No. 59 and whether the product was known in commercial circles as such; (iii) Whether the demand was barred by limitation or the recovery provisions were inapplicable; and (iv) Whether the penalty and fine imposed required interference.

Issue (i): Whether a trade notice could bind the excise authorities or restrict the scope of Tariff Item No. 59 by promissory estoppel.

Analysis: A trade notice issued by the department cannot control the statutory function of the assessing authority. There can be no estoppel against a statute, and executive instructions or notices cannot curtail the scope of a tariff entry or prevent the authority from deciding liability in accordance with law.

Conclusion: The trade notice was not binding on the authorities and could not limit the operation of Tariff Item No. 59.

Issue (ii): Whether the varnished fibreglass tapes and glass mica tapes were classifiable as electric insulation tapes under Tariff Item No. 59 and whether the product was known in commercial circles as such.

Analysis: The petitioners failed to establish that the goods were not electric insulation tapes. The materials showed that the tapes were impregnated or coated with insulating substance and were used for covering electric wires and cables. The Court also held that the petitioners had led no reliable evidence to disprove the commercial understanding of the product as insulation tape, and the burden of proving the contrary factual assertion lay on them.

Conclusion: The goods were rightly treated as electric insulation tapes and the classification was upheld.

Issue (iii): Whether the demand was barred by limitation or the recovery provisions were inapplicable.

Analysis: The Court held that the removal of goods attracted the excise control provisions, and the petitioners could not rely on an enquiry made by a different concern at a different office to defeat liability. The plea of limitation was rejected, and the extended recovery position was accepted as applicable on the facts.

Conclusion: The demand was not time-barred and the recovery provisions applied.

Issue (iv): Whether the penalty and fine imposed required interference.

Analysis: Since contravention of the Act and the Rules was established, the imposition of a modest penalty and fine was not shown to be illegal or unwarranted. The Court found no basis to interfere on hardship alone.

Conclusion: The penalty and fine were sustained.

Final Conclusion: The writ petition failed on all substantial grounds and the departmental orders confirming duty, penalty, and confiscatory consequences were upheld.

Ratio Decidendi: A trade notice or departmental instruction cannot override a taxing statute or bind the statutory authority in determining excisability; classification and liability must be decided according to the statute, and the assessee bears the burden of proving a claimed factual exclusion from the tariff entry.

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