M/S. Cochin Port Trust v. State of Kerala
Background
Cochin Port Trust, a statutory body set up to run port services, was also selling items like scrap equipment, water to ships, firewood, tender forms and waste paper. Kerala's tax authorities treated the Port Trust as a "dealer" liable to pay sales tax on these transactions for assessment years 1990-91, 1994-95 and 1997-98. The Port Trust argued it wasn't really in the "business" of selling goods, these sales were just incidental to its statutory port functions, and relied on an earlier Supreme Court ruling that had exempted the Madras Port Trust from a similar tax under Tamil Nadu's law. The Kerala Sales Tax Tribunal and the Kerala High Court both rejected this argument, so the Port Trust appealed to the Supreme Court.
Decision Breakdown
The Court held that Kerala's General Sales Tax Act defines "dealer" far more broadly than Tamil Nadu's Act did at the relevant time: Kerala's law expressly covers anyone who sells goods "whether in the course of business or not," while the Tamil Nadu provision required an actual "business" activity. Because of this difference, the Madras Port Trust precedent (decided under the narrower Tamil Nadu definition) did not apply here. The Court also noted that Tamil Nadu's law had since been amended to bring port trusts within its definition too, further undercutting the earlier precedent's relevance. Since Cochin Port Trust's scrap and incidental sales squarely fit Kerala's wide "dealer" definition, the Court found no error in the High Court's ruling and dismissed the appeal, confirming that the Port Trust is liable to pay sales tax on these transactions.
Lesson Learnt
A precedent interpreting one state's tax statute does not automatically apply to a similar-looking statute in another state: the exact wording of the definition matters, and a government/statutory body carrying out incidental sales alongside its public functions can still be taxed as a "dealer" if the law's definition is broad enough to capture non-business transactions.