Finality of capacity determination bars refund challenge; competent authority's order cannot be reopened collaterally in refund proceedings.

An unchallenged order finally determining annual capacity of production under the Hot Air Stenter Independent Textile Processors Annual Capacity Determination Rules, 1998 could not be reopened in refund proceedings. The refund claim failed because the assessee did not appeal the capacity determination, and a later contrary view in another case could not unsettle that final order. The capacity-determination order was also not treated as void for want of jurisdiction, since the officer acted within competence under the amended rule. Collateral challenge to the order was therefore unavailable, and the refund-based attack on the determination failed.

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Issues: (i) Whether refund of central excise duty was admissible when the order determining annual capacity of production had not been challenged and had attained finality. (ii) Whether the capacity-determination order was without jurisdiction or ab initio void so as to permit challenge in refund proceedings.

Issue (i): Whether refund of central excise duty was admissible when the order determining annual capacity of production had not been challenged and had attained finality.

Analysis: The annual capacity of production was finally determined after verification under Rule 4 of the Hot Air Stenter Independent Textile Processors Annual Capacity Determination Rules, 1998, as amended by Notification No. 26/2000-C.E. (N.T.) dated 31-3-2000. The appellants did not challenge that determination in appeal. Once an appealable order is allowed to attain finality, refund proceedings cannot be used to reopen the issue. A subsequent decision in another case could not by itself unsettle the concluded determination.

Conclusion: The refund claim was not admissible on the ground urged, and this issue was decided against the assessee.

Issue (ii): Whether the capacity-determination order was without jurisdiction or ab initio void so as to permit challenge in refund proceedings.

Analysis: The officer who passed the order was competent under the amended Rule 4 to determine annual capacity after verification. The order was therefore not passed in excess of authority. The plea that the order was ab initio void and could be attacked collaterally was rejected because these were independent refund proceedings and not collateral proceedings arising from a void order on which the Revenue had acted. The doctrine permitting collateral challenge to void orders was held inapplicable on these facts.

Conclusion: The capacity-determination order was not void for want of jurisdiction, and the challenge on that basis failed.

Final Conclusion: The appeal failed because the unchallenged capacity determination had become final and could not be reopened in refund proceedings.

Ratio Decidendi: An appealable order that has not been challenged and has attained finality cannot be indirectly reopened in refund proceedings, and a determination made by a competent authority under the governing rule cannot be treated as void merely because a later decision takes a different view on the underlying issue.

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