Excise exemption for antiseptic perfumed creams capped by an ad valorem rate, subject to drug licence and price control. Exemption under rule 8(1) of the Central Excise Rules, 1944 relieves antiseptic perfumed creams under sub heading 3304.00 from excise duty in excess of the amount computed at the rate of 20% ad valorem, subject to manufacture under a valid drug licence and fixation of retail price under the Drugs (Prices Control) Order, 1979.