Municipal advertisement royalty: prospectively revised rates upheld, retrospective effect rejected, and penalty struck down for want of authority.

A municipal charge for displaying advertisements was held to be royalty arising from the parties' arrangement, not a tax or compulsory levy, because it was consideration for permission rather than an exaction under taxing power. The Corporation could revise the royalty rate, but the enhancement could operate only prospectively and not retrospectively, as no excessive or disproportionate fixation was shown. Penalty for non-payment was unsustainable because no express legal authority empowered its imposition, although interest for delay was left open as a distinct compensatory claim.

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Issues: (i) Whether the municipal demand for advertisements was a tax/levy or royalty arising from an arrangement between the parties; (ii) whether the enhancement of the royalty rate to Rs.10 per square foot could be sustained and operated retrospectively; (iii) whether penalty could be imposed for non-payment in the absence of statutory power.

Issue (i): Whether the municipal demand for advertisements was a tax/levy or royalty arising from an arrangement between the parties

Analysis: The governing distinction is that tax is a compulsory exaction imposed under authority of law, whereas royalty is compensation paid for a privilege or benefit and ordinarily arises from an agreement or understanding between the parties. On the facts, the advertisers had agreed to pay royalty for display of hoardings within the municipal limits, and the demand was traceable to that arrangement rather than to a sovereign taxing power. The subsequent regulations dealing with permission and licensing did not convert the arrangement into a tax.

Conclusion: The demand was royalty and not a tax or levy.

Issue (ii): Whether the enhancement of the royalty rate to Rs.10 per square foot could be sustained and operated retrospectively

Analysis: Once the levy was found to be royalty, the Corporation was competent to revise the rate under the arrangement already accepted by the parties. The record did not establish that the revised rate was exorbitant or disproportionate. However, an enhanced rate could not be given retrospective effect; it could operate only prospectively from the date it was made public or communicated.

Conclusion: The enhancement of the rate was upheld prospectively and retrospective operation was disapproved.

Issue (iii): Whether penalty could be imposed for non-payment in the absence of statutory power

Analysis: Penalty is a distinct coercive consequence and cannot be imposed unless supported by express legal authority. The material did not disclose any enabling provision conferring power to impose penalty for delayed or non-payment of the royalty demand. Interest for delay stands on a different footing and may be recoverable as compensatory accretion, but that does not authorise a penalty.

Conclusion: The penalty was not sustainable, though interest on delayed payment was left open.

Final Conclusion: The Corporation's revised royalty demand was sustained subject to prospective operation, while the penalty component was set aside and the matter was disposed of with consequential directions for computation and payment.

Ratio Decidendi: A charge payable under an agreed municipal arrangement for permission to display advertisements is royalty and not tax; such royalty may be revised prospectively, but penalty for non-payment requires express statutory authority.

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