Section 124's first proviso permits oral notice at the concerned...

Section 124's first proviso permits oral notice at the concerned person's request and requires a genuine, effective opportunity to know and answer the allegations rather than service of a prescribed written form. Where an importer expressly waived a formal show-cause notice, participated in customs adjudication, and raised no contemporaneous objection, the absence of a separate written notice did not constitute a jurisdictional defect permitting recourse to writ jurisdiction despite the statutory appeal. The importer was relegated to the appellate remedy, with merits left open. No separate provisional-release direction was issued because detention was under consideration in another writ proceeding and interim relief could be sought before the appellate forum.