Reasonable time in tax assessment and plain-language turnover exclusions led to quashing of delayed rubber-sale taxation.

Where a taxing statute prescribes no express limitation for completing assessment, the power must still be exercised within a reasonable period; proceedings delayed far beyond the statutory record-preservation period were treated as unduly delayed and liable to be quashed. The provision excluding proceeds from the sale of rubber grown by the dealer within the State or on land in which the dealer had an interest had to be applied according to its plain terms, so such receipts could not be included in taxable turnover. The assessment proceedings were therefore set aside on both delay and merits.

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Issues: (i) Whether assessment proceedings completed after an inordinate lapse of time, though the statute prescribed no express limitation, were liable to be quashed as not having been concluded within a reasonable period; (ii) Whether consideration from the sale of rubber was excluded from turnover for the purposes of levy of sales tax.

Issue (i): Whether assessment proceedings completed after an inordinate lapse of time, though the statute prescribed no express limitation, were liable to be quashed as not having been concluded within a reasonable period.

Analysis: The statutory scheme required dealers to preserve books of account only for the current year and the previous five years, and the relevant rule similarly required preservation of accounts and vouchers for five years from the date on which the assessment became final. In that setting, and in the absence of an express limitation period, a reasonable period had to be read into the assessment power. Proceedings spanning many years beyond the preservation period were found to be unduly delayed and unacceptable.

Conclusion: The delay was unreasonable, and the assessment orders were liable to be quashed.

Issue (ii): Whether consideration from the sale of rubber was excluded from turnover for the purposes of levy of sales tax.

Analysis: The definition of turnover expressly excluded proceeds from the sale of rubber grown within the State by the dealer himself or on land in which he had an interest. On the plain language of the provision, such sale proceeds could not be included in taxable turnover.

Conclusion: The sale proceeds of rubber were excluded from turnover and could not be taxed.

Final Conclusion: The writ petitions succeeded, and the impugned assessment proceedings were set aside on both delay and merits.

Ratio Decidendi: Where a taxing statute contains no express limitation for completion of assessment, the power must still be exercised within a reasonable period, and statutory exclusions from turnover must be given full effect according to their plain terms.

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