Duty set-off and extended limitation in excise turned on notification compliance, declaration defects, and time-bar constraints.

Duty set-off on electric motors used in blower manufacture was available only while Notification No. 124/65 remained in force; once Rule 56A applied, credit required strict procedural compliance and proper correlation of inputs to output, so the claim failed for later periods. On limitation, prior notice through the 21-9-78 letter prevented suppression for 1978-79, but the absence of a proper declaration for manufacture of fans from 1-3-79 justified the extended period. The demand for 1976-77 was time-barred, while the demand for 1977-78 was sustained.

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Issues: (i) Whether the assessee was entitled to set-off of duty paid on electric motors used in the manufacture of blowers under the exemption notification, and whether non-compliance with Rule 56A defeated the claim for periods after the procedural requirement was introduced; (ii) whether the demand of duty was barred by limitation or could be sustained under the extended period on the ground of non-declaration or suppression.

Issue (i): Whether the assessee was entitled to set-off of duty paid on electric motors used in the manufacture of blowers under the exemption notification, and whether non-compliance with Rule 56A defeated the claim for periods after the procedural requirement was introduced.

Analysis: Notification No. 124/65 granted exemption by reducing the duty payable on electric fans to the extent duty had already been paid on the motors fitted in them. The assessee's claim was supported by the special nature of the motors and the direct correspondence between the motors purchased and the blowers manufactured. That entitlement, however, was available only so long as the notification remained in force. Once the procedural requirement under Rule 56A became applicable, credit could not be granted unless that procedure was followed and the necessary correlation was established through proper records.

Conclusion: The assessee was entitled to set-off for the period when Notification No. 124/65 operated, but the claim could not be granted for periods governed by Rule 56A without compliance with the prescribed procedure.

Issue (ii): Whether the demand of duty was barred by limitation or could be sustained under the extended period on the ground of non-declaration or suppression.

Analysis: The letter dated 21-9-78 was treated as sufficient notice to the Department regarding manufacture of fans for the year 1978-79, so suppression could not be alleged for that year. For the period from 1-3-79 onwards, the classification list did not disclose manufacture of fans as such, and a declaration of manufacture of coolers was held insufficient because fans were distinct for purposes of classification and assessment. The absence of proper declaration attracted violation of the relevant rules and justified invocation of the extended period under Rule 9(2). The demand for 1976-77 was, however, beyond the permissible period counted from the show-cause notice and could not be sustained, while the demand for 1977-78 remained sustainable.

Conclusion: The extended period was upheld for the later period of undisclosed manufacture, but the demand for 1976-77 failed as time-barred and the assessee was treated as on notice for 1978-79.

Final Conclusion: The appeal succeeded only to the limited extent of denying duty for 1976-77 and granting set-off to the extent permissible under Notification No. 124/65, while the remaining demand was maintained.

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