Modvat credit under Rule 57E is not governed by the six-month limit in Rule 57G(2); credit remained admissible.

Rule 57E operates as an independent substantive provision for adjusting Modvat credit where duty paid on inputs is later varied, and the six-month limit in Rule 57G(2) applies only to the specified documents covered by that rule. A certificate issued under Rule 57E is not a document governed by the Rule 57G(2) proviso, so the limitation cannot be imported into Rule 57E. On the facts, a fresh certificate was issued in lieu of the earlier one and the credit was taken within six months of receipt of that subsequent certificate, making the Modvat credit admissible.

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Issues: Whether the six-month bar introduced in Rule 57G(2) for taking Modvat credit on specified documents applies to a certificate issued under Rule 57E for differential duty paid on inputs.

Analysis: Rule 57G(2) governs credit taken on the documents specified in its first proviso. A certificate issued under Rule 57E is not one of those specified documents. Rule 57E operates as an independent substantive provision dealing with later variations in duty paid on inputs and permits corresponding adjustment of credit. The time-limit inserted in Rule 57G cannot be read into Rule 57E. On the facts, the original certificate was not received, a fresh certificate was issued in lieu of the earlier one, and the credit was taken within six months of receipt of the subsequent certificate.

Conclusion: The six-month restriction did not apply to credit taken on the basis of the Rule 57E certificate, and the Modvat credit was admissible. The issue is decided in favour of the assessee.

Ratio Decidendi: Rule 57E is an independent substantive provision for adjustment of credit on subsequent variation in duty paid on inputs, and the six-month limitation under Rule 57G(2) does not govern credit taken under Rule 57E.

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