Customs exemption amendment adds three pharmaceutical drugs to the exempted list under Customs Act authority, changing tariff applicability. The Central Government, exercising powers under the Customs Act, amends Notification No. 21/2002-Customs by inserting Capecitabine, Daclizumab and Ganciclovir into List 3 of the Annexure, thus including these pharmaceutical products within the notification's exemption regime.