Duty-paid input waste retains exemption benefit; extended limitation fails absent suppression of disclosed manufacturing facts.

Waste and scrap of polyethylene film generated during tyre manufacture retained the duty-paid character of the input, so Modvat credit could not be denied merely because part of the input emerged as waste under Rule 57D(1). The waste also fell within the scope of the plastics exemption notification because the underlying input had suffered duty, and prior availment of credit did not destroy that character. On limitation, the extended period was unavailable because the manufacturing process, waste generation, and clearances were disclosed and known to the department, leaving no suppression of facts.

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Issues: (i) Whether waste and scrap of polyethylene film arising during manufacture of tyres retained the duty-paid character of the input and qualified for exemption under the Modvat regime and the relevant notification; (ii) Whether the demand could be sustained by invoking the extended period on the ground of suppression of facts.

Issue (i): Whether waste and scrap of polyethylene film arising during manufacture of tyres retained the duty-paid character of the input and qualified for exemption under the Modvat regime and the relevant notification.

Analysis: The polyethylene film was an admitted duty-paid input used in the manufacture of tyres. The waste arose in the course of manufacture and, by virtue of Rule 57D(1), credit could not be denied merely because part of the input was contained in waste, refuse or by-product arising during manufacture of the final product. The waste also answered the description of waste and scrap of plastics under Notification No. 53/88, which granted exemption where the relevant goods had suffered duty. The fact that Modvat credit had been taken did not destroy the duty-paid character of the input.

Conclusion: The waste and scrap were entitled to exemption and the duty demand on merits was unsustainable, in favour of the assessee.

Issue (ii): Whether the demand could be sustained by invoking the extended period on the ground of suppression of facts.

Analysis: The manufacturing process and the existence of the waste were disclosed, and the department was aware that the waste arose during manufacture and was being cleared. The relevant records were maintained by the assessee and the facts were within the department's knowledge. In these circumstances, the essential element of suppression was absent and the extended limitation period could not be applied.

Conclusion: Invocation of the extended period was not justified and the demand was time-barred, in favour of the assessee.

Final Conclusion: The duty demand was set aside and the appeal was allowed because the waste qualified for exemption and the extended limitation period was unavailable.

Ratio Decidendi: Waste arising from duty-paid inputs during manufacture retains the benefit of Rule 57D(1) and an exemption notification where the input has suffered duty, and the extended period cannot be invoked absent suppression when the relevant facts were disclosed to the department.

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