Clarificatory exemption notification upheld where later amendment only set out the computation method for tax relief.

An explanatory amendment to an exemption notification was treated as clarificatory where it only prescribed the method of computing the tax relief and did not withdraw or reduce the substantive exemption available to an existing industrial unit. The court noted that the earlier exemption scheme under the Karnataka Sales Tax Act extended relief to units undertaking expansion, diversification or modernisation, and that the later notification merely substituted the explanatory clause to remove uncertainty in quantification. Because no accrued benefit or vested right was taken away, the challenge to the later notification failed and the State's appeal succeeded.

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Issues: Whether the notification dated 11.10.1995 substituting item (iii) of Explanation II to the earlier exemption notification dated 28.08.1993 was merely clarificatory and, if so, whether it could be applied so as to deny or alter the exemption already available to an existing industrial unit that had made investment for expansion, modernisation or diversification.

Analysis: The exemption scheme under section 8A of the Karnataka Sales Tax Act, 1957 was intended to extend tax relief both to new industrial units and to existing units undertaking expansion, diversification or modernisation. The earlier notification granted exemption subject to a ceiling, but the method of quantification was not clearly spelt out, leading to administrative inconsistency. The later notification did not withdraw the exemption or reduce the ceiling; it only substituted the explanatory provision to prescribe the manner of calculating the tax liability eligible for exemption. An explanation to a notification is meant to clarify the scope and working of the main provision and does not, by itself, enlarge or curtail the substantive benefit unless its language clearly shows such an intent. On the facts, the substituted clause only made explicit the method of computation and did not take away any accrued benefit or vested right. The doctrine of promissory estoppel was therefore not attracted against the State in the manner accepted by the learned single Judge.

Conclusion: The notification dated 11.10.1995 was held to be clarificatory in nature and not retrospective in the sense of withdrawing the earlier exemption. The challenge to the later notification failed and the State's appeal succeeded.

Final Conclusion: The earlier writ order was set aside because the subsequent exemption notification merely clarified the mode of quantification of tax relief without extinguishing the exemption granted under the earlier policy.

Ratio Decidendi: An explanatory amendment to an exemption notification is valid where it only clarifies the method of computing the concession and does not alter the substantive exemption or take away an accrued benefit.

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