HS Code Classification — The 8-Digit Discipline

HS code is the single most consequential decision on an import. It drives duty rate, scheme eligibility, PGA mapping and audit risk all at once. India uses the ITC-HS at 8-digit granularity — and CBIC adjudicates at 8-digit, not 6.

The structure of the ITC-HS code

An 8-digit Indian classification breaks down as:

• Digits 1–2 — Chapter (e.g., 85 for electrical machinery)
• Digits 3–4 — Heading (e.g., 8517 for telephones, communication apparatus)
• Digits 5–6 — International HS subheading (e.g., 8517 12 for cellular network apparatus)
• Digits 7–8 — Indian sub-classification (e.g., 8517 12 19 for "other" mobile phones)

Digits 1–6 are aligned with the World Customs Organization Harmonized System. Digits 7–8 are India-specific tariff nomenclature. Most disputes happen at digits 5–8.

The General Rules of Interpretation (GRI)

Six rules govern HS classification. The two that most often decide disputes:

• GRI 1 — Classification by terms of headings and section/chapter notes
• GRI 3(a) — Most specific description preferred over general descriptions
• GRI 3(b) — Composite goods classified by the component giving essential character

The four classification disputes that recur

1. Smartphone vs feature phone (8517 12 vs 8517 13)

Both are mobile phones, but the duty differential and BIS treatment differ. The line — operating-system capability and app extensibility — is thinner than CBIC notifications imply.

2. Module vs complete device (Chapter 85 vs Chapter 90)

An optical sensor module classified as a part (8542) vs a complete instrument (9027) can shift BCD by 7–15 percentage points. Hinges on whether the module performs the principal function unaided.

3. Solar cells vs solar modules (8541 40 11 vs 8541 40 12)

Cells attract ADD; modules attract a different ADD schedule and ALMM applicability. Misclassification triggers SCN with interest under Section 28.

4. LED light vs LED chip (Chapter 94 vs Chapter 85)

Finished LED luminaire (9405 41) vs LED component (8541 40 22) — duty differs by 10+ percentage points and BIS scope differs entirely.

How Aurum classifies

1. Read the supplier's technical specification — not the commercial invoice description
2. Apply GRI 1 against the heading and chapter notes
3. Cross-check CBIC tariff PDF (current notification — usually updated post-Budget)
4. Check 24-month look-back of relevant CBIC circulars and CESTAT decisions
5. Document the reasoning so an assessing officer (or a future audit) can follow it