Set-off under tax rules applies only within the specific head concerned; adverse balances cannot offset separate relief heads.

Rule 41 of the Bombay Sales Tax Rules, 1959 was construed as allowing a manufacturing dealer only the aggregate of the separate drawback, set-off or refund amounts specifically admissible under the rule. The first proviso to the explanation was treated as an integrated condition governing the defined class of sales through the dealer's branch or agent outside the State but within India, so the reduction under clause (iii) had to be made only against the relief attributable to those goods. The rule did not permit an adverse balance under one head to be transferred against set-off available under another head, or to achieve indirect recovery of Central sales tax foregone by the State.

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Issues: Whether, on a true construction of rule 41 of the Bombay Sales Tax Rules, 1959, the reduction under clause (iii) of the first proviso to the explanation was confined to the drawback, set-off or refund relatable to goods used in the manufacture of taxable goods sold through branches or agents outside the State but within India, or whether any adverse balance could be adjusted against set-off admissible under other heads of the rule.

Analysis: Rule 41 grants to a manufacturing dealer a drawback, set-off or refund of the aggregate of the sums admissible under the several clauses, and the expression "aggregate" denotes the total of the separate sums allowable under the rule, not an algebraic balancing of plus and minus figures. The explanation enlarges the meaning of "sale" for the purposes of the rule, but the first proviso is an integrated proviso applying to the specific class of sales by the dealer's own place of business or agent outside the State but within India. The first two conditions of the proviso and the reduction prescribed by clause (iii) are part of the same scheme and the reduction is to be made only from the amount of drawback, set-off or refund arising in respect of the goods covered by that class of sales. The structure and language of the rule do not support transferring an adverse balance arising under one head to another head, nor do they show any intention to enable indirect recovery of Central sales tax foregone by the State.

Conclusion: The reduction under clause (iii) of the first proviso to the explanation to rule 41 is to be made only from the drawback, set-off or refund due in respect of the goods covered by that proviso, and not by adjusting an adverse balance against set-off available under a different head.

Final Conclusion: The reference was answered by upholding the Tribunal's interpretation of rule 41 and rejecting the department's contention that an adverse balance under one head could be set off against another head of relief.

Ratio Decidendi: A proviso attached to an explanatory enlargement of "sale" must be read as an integrated condition governing the specific class of transactions to which it applies, and a tax set-off provision allowing an aggregate of sums does not authorise the adjustment of a minus balance against other independent heads of relief unless the rule clearly says so.

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