Strict construction of exemption notifications bars concessional duty before the operative date; defective rule citation did not defeat demand notice.

A demand notice was treated as valid in substance where the assessee was informed of the demand within six months and a later notice merely misdescribed the governing rule without causing prejudice. The demand was therefore not barred by limitation and was not invalid for defective rule citation. An exemption notification enhancing the permissible wholesale cash price operated only from its date of issue, so the concessional duty rate could not be applied to clearances made before that date. The benefit of exemption was held to require strict construction, and the earlier clearances remained liable to differential duty.

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Issues: (i) Whether the demand was barred by limitation or invalid because the show cause notice mentioned an incorrect rule or was otherwise defective. (ii) Whether the assessee was entitled to the concessional rate of duty for the disputed period before the amending exemption notification took effect.

Issue (i): Whether the demand was barred by limitation or invalid because the show cause notice mentioned an incorrect rule or was otherwise defective.

Analysis: The earlier communication of 29-12-1979 was treated as a valid notice in substance, as it informed the assessee of the demand within six months of the clearances. The subsequent notice also referred back to that communication. The use of Rule 9(2) in the later notice did not nullify the proceedings, since the officer was competent to proceed under the proper rule and a misdescription of the rule did not prejudice the assessee where the nature of the demand was clear.

Conclusion: The demand was not barred by limitation and was not invalid merely because of the incorrect reference to the rule.

Issue (ii): Whether the assessee was entitled to the concessional rate of duty for the disputed period before the amending exemption notification took effect.

Analysis: The exemption notification enhancing the permissible wholesale cash price operated only from its date of issue, namely 25-7-1979. Prior to that date, the prescribed price ceiling remained unchanged, and the concessional rate could not be claimed for clearances made earlier. Exemption notifications are to be construed strictly, and their benefit cannot be extended on the basis of general equitable considerations or the so-called spirit of the notification.

Conclusion: The assessee was not entitled to the concessional rate for clearances made from 1-7-1979 to 24-7-1979.

Final Conclusion: The differential duty demand was upheld on both limitation and merits, resulting in success for the Revenue.

Ratio Decidendi: A demand is not vitiated where the assessee is made aware of its substance within limitation and the notice is otherwise competent, and an exemption notification must be applied strictly only from the date on which it becomes operative.

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