Proviso construction under VAT law upheld as the retained levy remained valid after amendment and substitution of the main clause.

The Kerala High Court held that the proviso to Section 8(a)(ii) of the Kerala Value Added Tax Act continued to operate after the 2009 substitution of the main sub-clause. Applying settled principles on the construction of provisos, the Court found that sub-clauses (i), (ii) and the proviso served distinct functions within the statutory scheme, and that the proviso validly governed works contracts awarded by the Government of Kerala, the Kerala Water Authority and local authorities. The challenge alleging discrimination, arbitrariness and unconstitutionality failed because the proviso was neither otiose nor inconsistent with the amended provision, and the levy under it remained enforceable.

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Issues: Whether the proviso to Section 8(a)(ii) of the Kerala Value Added Tax Act, 2003, as retained after the 2009 amendment, was discriminatory, arbitrary and unconstitutional, and whether it could be construed as ineffective or otiose after substitution of sub-clause (ii).

Analysis: The controversy turned on the proper construction of a proviso and the effect of substitution of the main sub-clause by the Finance Act, 2009. The Court applied settled principles that a proviso ordinarily qualifies or excepts from the enacting provision, but may also operate as an independent or embedded statutory device depending on the legislative scheme. Reading Section 8(a) as a whole, the Court held that sub-clause (i), sub-clause (ii), and the proviso operated in distinct fields, and that the proviso continued to govern works contracts awarded by the Government of Kerala, Kerala Water Authority, and local authorities. The Court found that the challenge proceeded on a misunderstanding of the statutory structure and that there was no basis to ignore the proviso merely because sub-clause (ii) had been substituted.

Conclusion: The proviso was held to be valid and operative, and the challenge based on discrimination and unconstitutionality failed.

Final Conclusion: The statutory levy under the proviso remained enforceable, and the writ appeals were rejected on merits.

Ratio Decidendi: A proviso, when read with the principal provision and the statutory scheme, may continue to operate validly after amendment or substitution of the main clause if it remains consistent with legislative intent and does not offend constitutional guarantees.

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