Constitutional Law

No Customs Duty on SEZ-Generated Electricity Supplied Domestically

Supreme Court declares customs duty on electrical energy from Special Economic Zones illegal - Levy lacks lawful charging event, constitutes misuse of exemption power, and violates constitutional principles.

Case Reference: Adani Power Ltd. & Anr vs Union of India & Ors. Decided by: Supreme Court of India (Justices Aravind Kumar & N.V. Anjaria) Date: January 05, 2026

❓ Question

Can the government levy customs duty on electrical energy generated in a Special Economic Zone (SEZ) and supplied to the Domestic Tariff Area (DTA)?

✅ Answer

No, the Supreme Court has declared such levy illegal and unconstitutional.

The Court ruled that customs duty on SEZ-generated electricity lacks a lawful charging event under Section 12 of the Customs Act, constitutes misuse of exemption power under Section 25, violates statutory parity requirements of Section 30 of the SEZ Act, and breaches constitutional principles under Articles 14 and 265. The Court ordered refund of all amounts collected.

⚖️ Understanding the Legal Principles

🔹 No Lawful Charging Event

  • Section 12 of Customs Act requires "import into India"
  • SEZ-to-DTA electricity transfer is not "import"
  • Section 30 of SEZ Act creates parity, not new levy
  • Absence of charging event makes levy ultra vires

🔹 Misuse of Exemption Power

  • Section 25 allows exemption, not imposition of duty
  • Notification used exemption power to create new levy
  • Colourable exercise of delegated legislation
  • Executive cannot create taxes via notification

🔹 Constitutional Violations

  • Article 265: No tax without authority of law
  • Article 14: Arbitrary discrimination created
  • Double burden on same economic stream
  • Violates rule of law and separation of powers

📜 Key Legal Timeline

Before 2009

Nil Duty Regime - Imported electricity bore no customs duty; SEZ-to-DTA transfers also duty-free

Feb 27, 2010

Notification 25/2010-Cus - Introduced 16% ad valorem duty on SEZ-to-DTA electricity with retrospective effect from June 26, 2009

May 6, 2010

Interim Relief Granted - Gujarat High Court allowed clearance without payment, subject to bank guarantee

Sep 16, 2010

Reduced Duty Rate - Notification 91/2010 reduced duty to ₹0.10 per unit (prospectively)

Apr 18, 2012

Further Reduction - Notification 26/2012 reduced duty to ₹0.03 per unit

Jul 15, 2015

Gujarat HC Judgment - Declared 16% levy ultra vires; struck down retrospective component

Feb 16, 2016

Exemption Granted - Notification 9/2016 exempted large SEZ units from duty

Jun 28, 2019

HC Denies Refund - Gujarat HC refused refund for later period, citing separate notifications

Jan 5, 2026

Supreme Court Verdict - Allowed appeal, declared entire levy illegal, ordered refund

🧭 Your Action Plan: If Affected by SEZ Duties

📝 If You Are an SEZ Unit Paying Customs Duty on Electricity

✅ Step 1: Document All Payments

  • Compile all payment records for customs duty on electricity
  • Include period from first payment to February 15, 2016
  • Maintain bank guarantee documents if any
  • Preserve all demand notices and assessment orders

✅ Step 2: File Refund Application

  • Apply to jurisdictional Commissioner of Customs
  • Submit within 8 weeks of Supreme Court judgment
  • Reference Civil Appeal No. ____ of 2026
  • Quote this Supreme Court judgment specifically

✅ Step 3: Monitor Refund Processing

  • Follow up regularly with customs authorities
  • Ensure no hyper-technical objections are raised
  • Confirm refund is processed without interest
  • Maintain all communication records

⚖️ Key Legal Provisions to Reference

Legal Principle What It Means Application in This Case
Article 265 Constitution No tax shall be levied except by authority of law Executive cannot create tax via notification; requires parliamentary sanction
Section 12 Customs Act Customs duty levied on goods imported into India SEZ-to-DTA electricity is not "import"; no charging event exists
Section 25 Customs Act Power to grant exemption from duty Cannot be used to impose duty; misuse constitutes colourable exercise
Section 30 SEZ Act Parity clause for SEZ-to-DTA clearances Requires same duty as imports; imported electricity has nil duty
Article 14 Constitution Equality before law and equal protection Imposing duty on SEZ electricity while imported electricity duty-free is arbitrary

📘 Key Legal Terms Explained

Special Economic Zone (SEZ)

Designated area treated as foreign territory for trade operations, duties, and tariffs, with separate economic laws to promote exports and investment.

Domestic Tariff Area (DTA)

Area within India outside SEZs, subject to normal customs duties and import regulations applicable to goods produced domestically.

Colourable Legislation

Legal doctrine where authority exercises power under guise of one purpose to achieve another unauthorized purpose - misuse of delegated power.

Ultra Vires

Latin term meaning "beyond powers"; refers to actions taken beyond legal authority or power conferred by law.

Deeming Fiction

Legal presumption that treats something as true for specific purposes, cannot be extended beyond legislative intent.

🚨 What to Avoid in SEZ Customs Duty Matters

❌ Don't Accept Hyper-Technical Objections

  • Avoid accepting objections about notification sequence
  • Don't agree to file fresh challenges for same levy
  • Avoid procedural delays in refund applications
  • Don't accept arguments about separate cause of action

❌ Don't Miss Statutory Timelines

  • Avoid delays beyond 8-week refund window
  • Don't ignore Supreme Court's specific directions
  • Avoid incomplete documentation submissions
  • Don't overlook requirement to quote judgment reference

💡 Core Takeaway from the Supreme Court

"The power conferred by Section 25 of the Customs Act is a power to exempt goods from duty otherwise leviable; it is not a power to create a fresh levy in the first place. The use of an exemption notification to impose duty was a colourable exercise of delegated legislation."

This landmark judgment establishes crucial constitutional principles: the executive cannot create taxes through notifications, delegated legislation has limits, and courts must look beyond form to examine substance. The Court emphasized that once a levy is declared ultra vires, subsequent notifications continuing the same levy in altered form cannot claim legitimacy.

📞 When to Seek Professional Help

👨‍⚖️ Legal Counsel Essential For

  • Complex customs duty refund applications
  • Challenging similar levies in other SEZ contexts
  • Representation before customs authorities
  • Appeals against adverse customs decisions
  • Constitutional challenges to tax legislation

📝 You Can Handle With Support

  • Basic refund application preparation
  • Document compilation for customs claims
  • Understanding SEZ duty implications
  • Monitoring refund processing status
  • Basic legal principle comprehension

⚠️ DISCLAIMER

This content is for informational purposes only and does not constitute legal advice. Consult a qualified legal professional for specific legal guidance. The information provided is based on judicial interpretation and may be subject to changes in law.

🌿 LegalEcoSys Mission

Making Supreme Court judgments accessible and actionable for every Indian citizen navigating legal challenges.

This analysis decodes a complex constitutional and tax judgment to help businesses, SEZ units, and legal professionals understand the implications of customs duty on electricity generation and transmission.