In Larsen and Toubro Limited vs Additional Deputy Commissioner of Commercial Taxes (Civil Appeal No. 2956 of 2007, decided on September 5, 2016), the Supreme Court of India held that payments made to registered sub-contractors who have declared turnover and paid sales tax on works contracts cannot be taxed again in the hands of the main contractor under Section 6-B of the Karnataka Sales Tax Act, 1957. Justices A.K. Sikri and Rohinton Fali Nariman affirmed that a single taxable event occurs in a works contract under Article 366(29A)(b) of the Constitution of India, prohibiting double taxation on the same transfer of property in goods.
Factual Background and the Works Contract Assessment
Larsen and Toubro Limited (L&T) operates as an engineering and construction enterprise executing major infrastructure projects across India under contracts with government bodies, public sector undertakings, and private corporations. In the course of executing contracts, the company assigns specific specialized segments of work to sub-contractors on a back-to-back basis.
In Civil Appeal No. 2956 of 2007, L&T secured a contract to construct the Sree Kanteerava Indoor Stadium in Bengaluru. The company assigned the specialized work of procuring materials and laying foam concrete to M/s Lloyd Insulation (India) Limited as a registered sub-contractor. Lloyd Insulation filed statutory returns, paid sales tax under Sections 5-B and 6-B of the Karnataka Sales Tax Act, 1957, and obtained formal assessment certificates from the commercial tax authorities.
During the assessment of L&T for Assessment Year 1997-1998, the Assessing Officer added the payments made to Lloyd Insulation into the total turnover of L&T for the purpose of levying turnover tax under Section 6-B. L&T contested this assessment, arguing that the transfer of property in goods had already occurred between the sub-contractor and the ultimate project owner, and because tax had been assessed and collected on that taxable event, including the same value in the main contractor's turnover constituted impermissible double taxation. The Assessing Officer, the Karnataka Appellate Tribunal, and the High Court of Karnataka dismissed L&T's revisions, leading to the appeal before the Supreme Court.
Statutory Framework Under the Karnataka Sales Tax Act, 1957
The resolution of the dispute required the Supreme Court to interpret key statutory definitions under the Karnataka Sales Tax Act, 1957:
- Sale under Section 2(1)(t): Defines a sale as every transfer of property in goods in the course of trade or business, expressly including a transfer of property in goods involved in the execution of a works contract pursuant to Article 366(29A)(b).
- Taxable Turnover under Section 2(1)(u-1): The turnover on which a dealer is liable to pay tax after making permissible statutory deductions from total turnover.
- Total Turnover under Section 2(1)(u-2): The aggregate turnover in all goods of a dealer at all places of business in the State, whether or not the whole or any portion is liable to tax.
- Turnover under Section 2(1)(v): The aggregate amount for which goods are bought, sold, supplied, delivered, or disposed of by a dealer directly or through another.
- Charging Section 5-B: Imposes sales tax on the taxable turnover of transfer of property in goods involved in the execution of works contracts.
- Turnover Tax under Section 6-B: Levies a tax on total turnover where the dealer's aggregate turnover exceeds statutory financial thresholds.
Constitutional Doctrine Under Article 366(29A)(b)
Prior to the Constitution (Forty-sixth Amendment) Act, 1982, indivisible works contracts could not be subjected to state sales tax because they constituted contracts for work and labor rather than sales of goods. The Forty-sixth Amendment introduced clause (29A)(b) to Article 366, creating a legal fiction that treats the transfer of property in goods involved in the execution of a works contract as a deemed sale.
The Supreme Court reaffirmed that this constitutional provision creates only one taxable event: the transfer of property in goods from the person executing the contract to the project owner. When a sub-contractor executes a portion of a works contract, the property in goods passes directly from the sub-contractor to the project owner on the principle of accretion. Because only one transfer of property occurs, that transfer can be taxed only once.
Application of the Andhra Pradesh Precedent
The Supreme Court examined its earlier landmark decision in State of Andhra Pradesh v. Larsen and Toubro Limited (2008) 9 SCC 191. In that judgment, the Court held under the Andhra Pradesh Value Added Tax Act, 2005 that when a sub-contractor is assessed to tax on the deemed sale of goods, the main contractor cannot be assessed again on the same value.
The State Revenue argued that the Karnataka Act differed from the Andhra Pradesh statute because Section 6-B levied tax on total turnover rather than taxable turnover. The Supreme Court rejected this contention, ruling that the fundamental principle governing works contracts remains uniform: turnover tax cannot be levied on amounts that do not represent a turnover of goods in the hands of the main contractor once the sub-contractor has paid tax on the deemed sale.
| Legal Aspect | Revenue Department Argument | Supreme Court Holding |
|---|---|---|
| Single Taxable Event | Main contractor and sub-contractor create two separate taxable transactions. | Property in goods passes by accretion to project owner in a single taxable event. |
| Total Turnover Inclusion | Section 6-B taxes aggregate turnover regardless of exemptions under Section 5-B. | Sub-contractor payments cannot form part of main contractor turnover if tax was paid. |
| Double Taxation | Turnover tax is distinct from regular sales tax, permitting separate levies. | Taxing the same deemed sale twice violates Article 366(29A)(b) principles. |
Judicial Findings and Procedural Directions
The Supreme Court delivered the following definitive rulings:
- In Civil Appeal No. 2956 of 2007 (Assessment Year 1997-1998), the judgment of the Karnataka High Court was set aside, and the appeal was allowed in favor of L&T.
- In Civil Appeal No. 2318 of 2013 (Assessment Year 2002-2003), the matter was remanded to the Assessing Officer to verify tax payments made by registered sub-contractors and deduct those amounts from L&T's turnover.
- In Civil Appeal No. 7241 of 2016 (Assessment Year 1999-2000), the High Court judgment in favor of L&T was affirmed, and the Revenue's appeal was dismissed.
The procedural clarity provided in this judgment reinforces established standards in civil appellate procedure and statutory revision principles, ensuring that lower tribunals conform to constitutional taxing boundaries.
Commercial Impact on Infrastructure Contractors
This ruling settled years of commercial uncertainty for engineering, procurement, and construction (EPC) firms in India. Contractors who maintain meticulous records of sub-contractor tax filings, assessment orders, and registration certificates are protected from double taxation on works contracts. The decision exemplifies the strict judicial interpretation of statutory taxing statutes, affirming that fiscal authorities cannot expand tax liability beyond constitutional mandates.