An indeterminate principal function requires classification under the later equally meritorious tariff heading.

The respondent imported a car unit described as an AM/FM radio with a DVD player and self-assessed it under Customs Tariff Item (CTI) 8527 29 00, claiming the benefit of Notification No. 46/2011-Cus. Customs reassessed it under CTI 8521 90 90 as an “Other DVD Player” and denied the benefit; the respondent paid duty under protest.

The Commissioner (Appeals) set aside the reassessment and directed classification under CTI 8527 29 00. Revenue appealed to the Tribunal.

1. Whether the goods, combining a radio broadcast receiver and a DVD player in one housing, are governed by Note 3 to Section XVI of the Customs Tariff Act, 1975.

2. Whether Revenue established that video reproduction was the goods’ principal function, warranting classification under CTI 8521 90 90.

3. If Revenue did not establish that classification, whether the goods were correctly classified under CTI 8527 29 00 and entitled to the associated notification benefit.

Rule 1 of the General Rules for Interpretation (GRI) requires classification according to the terms of the headings and relevant Section and Chapter Notes; headings 8521 and 8527 respectively cover video reproducing apparatus and radio-broadcast reception apparatus.

Note 3 to Section XVI directs that composite machines fitted together, or machines performing multiple functions, be classified according to the component or machine performing the principal function.

The General Explanatory Notes to Section XVI provide that, where the principal function cannot be determined and the context does not require otherwise, GRI 3(c) applies, directing classification under the heading occurring last in numerical order among those equally meriting consideration.

The HSN Explanatory Notes are an important interpretive aid where the tariff is aligned with the Harmonised System [*Collector of Central Excise, Shillong v. Wood Craft Products Ltd.*; *Thermax Ltd. v. Commissioner of Central Excise*; *Commissioner of Central Excise, Salem v. Madhan Agro Industries (India) Pvt. Ltd.*].

Where Revenue proposes a classification different from the importer’s, it bears the burden of establishing that classification with cogent evidence; under Note 3, that includes establishing the proposed function as the principal function [*Hindustan Ferodo Ltd. v. Collector of Central Excise*; *HPL Chemicals Ltd. v. Commissioner of Central Excise*; *Hewlett Packard India Sales Pvt. Ltd. v. Commissioner of Customs (Import)*].

Advertising may corroborate a conclusion based on the goods’ nature and operation, but is not conclusive by itself [*Thermax*; *Madhan Agro Industries*].

The Tribunal held that the unit was a composite machine combining functions described in headings 8521 and 8527, so Note 3 to Section XVI applied.

Revenue relied principally on the importer’s website and catalogue, but had produced no technical examination, component or cost comparison, expert opinion, or other evidence establishing video reproduction as the principal function.

By contrast, the unrebutted technical opinion described the unit as built around a tuner-amplifier unit, with the DVD mechanism as a connected module; its vehicle-specific design and 12-volt operation were also uncontroverted.

The Tribunal therefore found Revenue had not discharged its burden.

Further, if neither function could be shown to be principal, GRI 3(c) led to heading 8527, which occurs later numerically than heading 8521.

The Tribunal sustained the appellate authority’s classification, while clarifying that the mere presence of an additional feature does not invariably preserve classification under heading 8527.

As no independent ground for denying Notification No. 46/2011-Cus was raised, the respondent was entitled to its benefit.

Revenue’s appeal was dismissed, and consequential relief was allowed in law, if any.