State Legislatures Lack Competence to Tax Electricity Generation Under the Guise of Water Tax

Various hydroelectric power companies (appellants) challenged the constitutional validity of "The Uttarakhand Water Tax on Electricity Generation Act, 2012," which imposed a tax on water drawn for electricity generation.

A Division Bench of the Uttarakhand High Court previously delivered a split verdict: the Chief Justice upheld the Act, while Justice Maithani struck it down as ultra vires.

The matter was referred to a third judge (Justice Alok Kumar Verma) for a majority opinion.

The appellants argued they had entered into Implementation Agreements with the State, which promised exemptions from such taxes, invoking the doctrine of promissory estoppel.

1. Whether the State Legislature possesses the legislative competence to impose a tax on water drawn for electricity generation under Entries 17, 18, 45, 49, or 50 of List II or Article 288 of the Constitution.

2. Whether the Act, in pith and substance, imposes a tax on the generation of electricity rather than the drawal of water.

3. Whether Section 17 of the Act suffers from the vice of excessive delegation by allowing the Executive to fix tax rates without legislative guidelines.

4. Whether the State is barred by the doctrine of promissory estoppel from levying the tax due to prior contractual agreements.

Primary Rule of Literal Interpretation: the intention of the legislature must be found in the words used.

Doctrine of "Pith and Substance" to determine the true nature of the levy.

Principle from State of W.B. v. Kesoram Industries Ltd.: "Taxation" is a distinct matter from general subjects and cannot be derived from a general entry as an ancillary power.

Doctrine of "Excessive Delegation": essential legislative functions, such as fixing tax rates without a ceiling or policy, cannot be abdicated to the executive.

No "Promissory Estoppel against the Legislature" in the exercise of its legislative functions.

The Court analyzed the "charging section" of the Act, noting that tax liability is triggered only when water is drawn specifically for "generation of electricity".

By applying the doctrine of pith and substance, the Court found that the taxable event is not the mere drawal of water, but the generation of electricity itself; hence, the State lacked competence as electricity generation falls under the Union's domain and is not covered by any taxing entry in List II.

The Court further found that Section 17 granted "unfettered power" to the government to fix rates without any statutory maximum or guidelines, characterizing it as "naked delegation".

Regarding promissory estoppel, the Court reasoned that while the government could be bound by promises, the State Legislature cannot be interdicted from exercising its sovereign taxing power by a prior executive agreement.

The Court held that the State Legislature was incompetent to levy tax on electricity generation and that the Act suffered from excessive delegation; however, it rejected the plea of promissory estoppel against the exercise of legislative functions.

The reference was answered by striking down the impugned Act.