Forfeiture of excess sales tax collected is valid where the machinery only prevents unjust enrichment and enables reimbursement.

Excess tax collected under the Central Sales Tax Act may be forfeited under section 46A of the Kerala General Sales Tax Act when the collection is unlawful. Rule 31D operates as a reimbursement mechanism so the Government does not retain the amount as a substantive beneficiary, but holds it until the buyer seeks repayment. The forfeiture and reimbursement framework was treated as a machinery provision aimed at preventing dealers from keeping sums not legally due and protecting buyers from unlawful collection. The mechanism was held to be consistent with the CST scheme, as it does not create an unauthorised substantive levy and reflects the policy against unjust enrichment.

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Issues: Whether excess tax collected under the Central Sales Tax Act, 1956 can be forfeited under section 46A of the Kerala General Sales Tax Act, 1963, and whether the State law machinery for forfeiture and reimbursement can validly apply to such collection.

Analysis: Section 46A of the Kerala General Sales Tax Act, 1963 authorises forfeiture of tax illegally collected and, by the connected rules, also provides a mechanism for reimbursement to the person from whom the amount was collected. Rule 31D of the Kerala General Sales Tax Rules, 1963 ensures that the Government does not become the substantive beneficiary of the forfeited amount, but merely holds it until the buyer seeks reimbursement. The Court held that this arrangement is a machinery provision intended to prevent dealers from retaining amounts not legally due and to protect buyers from unlawful collection. The Court distinguished the rule against importing substantive liabilities into the Central Sales Tax Act from the present case, since the forfeiture mechanism operates consistently with the CST scheme and does not create an unauthorised substantive levy. Reliance was placed on the principle against unjust enrichment and on the statutory policy that excess tax collected cannot be retained by the dealer.

Conclusion: Forfeiture of excess CST collected by the dealer under section 46A of the Kerala General Sales Tax Act, 1963 is valid, and the appeal fails.

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