Limitation for recovery of mistaken duty refund applied under Rule 10, making the show cause notice time-barred.

An adjustment of duty in a Personal Ledger Account made pursuant to a rebate claim was treated as a refund of duty, so recovery was governed by Rule 10 of the Central Excise Rules. Rule 10A could not be invoked on these facts because the demand arose from the Department's view that the rebate had been mistakenly allowed due to an erroneous interpretation of the notification. As Rule 10 imposed a one-year limitation and the notice was issued nearly four years after the adjustment, the show cause notice was held time-barred and unsustainable in favour of the assessee.

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Issues: Whether the demand for refund of rebate adjusted in the Personal Ledger Account was barred by limitation under Rule 10 of the Central Excise Rules and whether Rule 10A could be invoked instead.

Analysis: The adjustment in the Personal Ledger Account was made pursuant to a rebate claim under the notification, and the later demand was founded on the Department's view that the rebate had been allowed by mistake due to an erroneous construction of the notification. In substance, the adjustment amounted to refund of duty, and the case therefore fell within Rule 10. Rule 10A was not applicable on these facts. Since Rule 10 prescribed a limitation of one year and the notice was issued nearly four years after the adjustment, the demand was beyond time.

Conclusion: The show cause notice was time-barred under Rule 10 and was not sustainable. The finding is in favour of the assessee.

Ratio Decidendi: Where duty is refunded or adjusted by mistake because of an erroneous interpretation of a notification, the demand for recovery is governed by the limitation provision applicable to refund by mistake and cannot be sustained under a residuary rule with no applicable basis on the facts.

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