End-use declaration breach can trigger escaped turnover reassessment, while penalty may still fail for bona fide mistake.

A tax concession based on a declared end-use must be supported by full disclosure of the relevant primary facts. Where packing materials purchased under the Bihar Sales Tax Act were later used outside Bihar contrary to the declaration, their value ceased to remain outside the taxable turnover, and the omission in the return amounted to escapement justifying reassessment under section 18(1)(a). The omission was not confined to section 18(1)(b), and earlier proceedings on a different issue did not bar reopening. Although reassessment was sustained, penalty was not upheld because the statutory position was unclear and the dealer could have acted under a bona fide mistaken view.

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Issues: (i) whether the purchasing dealer's use of packing materials outside Bihar, contrary to the undertaking in the declaration form, caused escapement of taxable turnover and justified reassessment under section 18(1)(a) of the Bihar Sales Tax Act, 1959; (ii) whether the reassessment was barred because the case fell only under section 18(1)(b); (iii) whether penalty was legally justified.

Issue (i): Whether the purchasing dealer's use of packing materials outside Bihar, contrary to the undertaking in the declaration form, caused escapement of taxable turnover and justified reassessment under section 18(1)(a) of the Bihar Sales Tax Act, 1959.

Analysis: The exemption and deduction scheme under sections 5 and 7(2)(b)(ii) of the Bihar Sales Tax Act, 1959, read with Rule 8(1)(c) of the Bihar Sales Tax Rules, depended on a true declaration that the goods would be used for packing goods for sale inside Bihar. The declaration created a statutory condition attached to the concession. Once part of the goods purchased under the declaration were despatched outside Bihar, the condition attached to the concession was violated and the value of those goods ceased to remain outside the taxable turnover of the purchasing dealer. The non-inclusion of that value in the return amounted to omission of material facts and resulted in escapement of turnover.

Conclusion: The turnover had escaped assessment, and reassessment was validly initiated under section 18(1)(a) of the Bihar Sales Tax Act, 1959.

Issue (ii): Whether the reassessment was barred because the case fell only under section 18(1)(b) of the Bihar Sales Tax Act, 1959.

Analysis: The distinction between clauses (a) and (b) of section 18(1) turned on whether there had been omission or failure to disclose fully and truly all material facts. The return did not disclose the value of packing materials sent outside Bihar, and prior disclosure in another context did not cure the omission in the assessment return. The dealer was obliged to disclose all primary facts necessary for assessment, and the omission in the return was sufficient to attract section 18(1)(a). The earlier proceedings on a different controversy did not preclude the present reopening, because the issue then was different and res judicata has no application in tax assessment in this manner.

Conclusion: The case did not fall merely under section 18(1)(b); section 18(1)(a) applied.

Issue (iii): Whether penalty was legally justified.

Analysis: Although the reassessment was sustained, the statutory position was found to be confusing and the dealer may have laboured under a bona fide mistaken view as to its obligation. In such circumstances, the case was not considered apt for penalty, even though reassessment on escaped turnover was upheld.

Conclusion: The penalty was not justified and was quashed.

Final Conclusion: The challenge to the reassessment failed, but the penalty could not be sustained; the taxable turnover was held to have escaped assessment because the statutory condition attached to the exemption was violated.

Ratio Decidendi: Where a tax concession is granted on a declared condition as to end-use, breach of that condition by the dealer can result in escapement of turnover and justify reassessment, if the return omits the relevant primary facts.

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