Writ jurisdiction and retrospective excise exemption protect a duty notice challenge where the issue is purely legal.

Writ jurisdiction may be exercised against a show-cause notice where the dispute is purely legal and goes to the very authority to levy duty, rather than to contested facts. A notification granting excise exemption for Chapter 85 goods and issued within the statutory window under the retrospective exemption legislation falls within that Act and is given retrospective effect. The legal effect is that the exemption is protected by validating legislation, and the challenge to the notice does not fail merely because an appellate remedy exists.

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Issues: (i) Whether the writ court ought to exercise jurisdiction under Articles 226 and 227 of the Constitution in a challenge to a show-cause notice where the dispute turns on a question of law affecting the very authority to demand duty; (ii) Whether Notification No. 217/86 dated 2 April 1986, granting exemption to goods in Chapter 85 of the Central Excise Tariff, falls within Section 2 of the Central Duties of Excise (Retrospective Exemption) Act, 1986.

Issue (i): Whether the writ court ought to exercise jurisdiction under Articles 226 and 227 of the Constitution in a challenge to a show-cause notice where the dispute turns on a question of law affecting the very authority to demand duty.

Analysis: The availability of an appeal does not by itself bar writ jurisdiction where the controversy is confined to interpretation of a statutory provision and the existence of authority to levy duty. The dispute did not require resolution of disputed facts but depended on construction of Section 2 of the retrospective exemption Act and its interaction with the exemption notification.

Conclusion: The exercise of writ jurisdiction was justified and the issue was answered in the affirmative, in favour of the assessee.

Issue (ii): Whether Notification No. 217/86 dated 2 April 1986, granting exemption to goods in Chapter 85 of the Central Excise Tariff, falls within Section 2 of the Central Duties of Excise (Retrospective Exemption) Act, 1986.

Analysis: The notification granted exemption from excise duty to the relevant goods and was issued within the statutory window contemplated by Section 2, namely notifications issued on or after 3 March 1986 and before 8 August 1986 under Rule 8(1) of the Central Excise Rules, 1944. By deeming such notifications to have effect from 1 March 1986, the Act gave retrospective effect to the exemption and continued the exemption already operating for those goods.

Conclusion: The notification fell within Section 2 of the Act, and the issue was answered in the affirmative, in favour of the assessee.

Final Conclusion: The challenge to the quashing of the show-cause notice failed, and the exemption notification was held to be protected by the retrospective exemption legislation.

Ratio Decidendi: A writ court may exercise jurisdiction against a show-cause notice where the controversy is purely legal and concerns the very authority to levy duty, and a notification granting excise exemption issued within the statutory period is entitled to retrospective effect under the validating legislation.

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