Concessional excise duty depends on capital investment limits, while refund claims remain subject to statutory limitation periods.

A unit claiming concessional excise duty under Notification No. 91/72 qualified because its capital investment in plant and machinery, as certified by the District Industries Officer, fell within the prescribed ceiling at the time of initial installation. Refund claims for earlier clearances, however, remained subject to limitation under Rule 11 read with Rule 173J of the Central Excise Rules, 1944, so the portion relating to April 1971 to September 1971 was time-barred. Relief was therefore confined to the non-time-barred period, while the concessional duty benefit was available on satisfaction of the notification's investment condition.

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Issues: (i) Whether the unit was entitled to concessional duty under Notification No. 91/72 dated 13-3-1972 on the basis of its capital investment in plant and machinery; (ii) whether the refund claims were barred by limitation in respect of the earlier clearances.

Issue (i): Whether the unit was entitled to concessional duty under Notification No. 91/72 dated 13-3-1972 on the basis of its capital investment in plant and machinery.

Analysis: The notification granted concessional duty to units whose capital investment on plant and machinery as on the date of initial installation was below the prescribed ceiling. The record contained a certificate from the District Industries Officer showing the capital investment at Rs. 4,27,804.71, which was within the qualifying limit. On that basis, the unit satisfied the conditions of the notification.

Conclusion: The assessee was entitled to the benefit of the concessional rate of duty under Notification No. 91/72 dated 13-3-1972.

Issue (ii): Whether the refund claims were barred by limitation in respect of the earlier clearances.

Analysis: The claim had been made in September 1972 for clearances relating to April 1971 to March 1972. The portion covering April 1971 to September 1971 was beyond the permissible period under Rule 11 of the Central Excise Rules, 1944, read with Rule 173J of the Central Excise Rules, 1944, and was therefore time-barred.

Conclusion: The refund claim for April 1971 to September 1971 was rejected as barred by limitation, while the claim for September 1971 to September 1972 was allowed.

Final Conclusion: The assessee obtained relief on the concessional duty claim, but refund was confined to the non-time-barred period only.

Ratio Decidendi: A unit proving that its plant and machinery investment on initial installation falls within the ceiling fixed by the exemption notification is entitled to concessional duty, but refund claims remain subject to the statutory limitation period under the Central Excise Rules, 1944.

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