GST limitation bar strictly enforced; writ jurisdiction cannot extend the statutory condonation ceiling or reopen time-barred proceedings.

Under the GST limitation scheme, an appeal can be filed only within the prescribed period and, where the statute fixes an outer ceiling for condonation, neither the appellate authority nor the High Court can extend that limit on grounds of sufficient cause or by resort to general writ powers. The document also states that once the statutory appeal is rejected as time-barred, writ jurisdiction should not ordinarily be used to challenge the show cause notice or the consequential order so as to bypass the legislative timeline. The statutory bar was treated as strict, and no relief was available against either the limitation rejection or the underlying GST proceedings.

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Issues: (i) Whether the appellate authority or the High Court could entertain an appeal or writ petition filed beyond the statutory maximum period of limitation under the GST law. (ii) Whether the writ petition could be used to assail the show cause notice and the consequential order after the statutory appeal was rejected as time-barred.

Issue (i): Whether the appellate authority or the High Court could entertain an appeal or writ petition filed beyond the statutory maximum period of limitation under the GST law.

Analysis: The statutory scheme under the GST law permitted filing of the appeal within the prescribed period and a further limited extension only up to the maximum period specifically provided by the statute. The Court applied the principle that where the legislature has fixed an outer limit for condonation, neither the appellate authority nor the High Court can enlarge that period by invoking general writ powers or principles drawn from the Limitation Act. The Court also treated taxpayer vigilance in checking portal-based orders as relevant to the issue of delay, but held that even a claimed sufficient cause could not authorise condonation beyond the statutory ceiling.

Conclusion: The appeal could not be entertained beyond the statutory limit, and the challenge to the delay rejection failed.

Issue (ii): Whether the writ petition could be used to assail the show cause notice and the consequential order after the statutory appeal was rejected as time-barred.

Analysis: The Court held that once the statutory remedy was not availed within time, the writ court should not, as a matter of course, interfere with the show cause notice or the order passed in the statutory process. The Court declined to treat the writ jurisdiction as a means to bypass the legislative timeline or to reopen a matter that had already been rejected on limitation.

Conclusion: The writ challenge to the show cause notice and the impugned order was not entertained.

Final Conclusion: The statutory limitation regime was enforced strictly, and the petitioner obtained no relief against either the limitation order or the underlying GST proceedings.

Ratio Decidendi: When a taxing statute prescribes a fixed outer limit for filing and condonation of appeal, the High Court cannot, in exercise of writ jurisdiction, extend that limit or bypass the statutory bar on the basis of sufficient cause.

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