Customs duty amendment redefines tariff entries for edible oils under specified headings and removes a prior entry. The Central Government, invoking powers under section 25(1) of the Customs Act, 1962, amends Notification No. 61/2000 Customs by substituting S. No. 4A with a new entry defining edible oils as products falling under specified tariff headings for refined and other vegetable oils, and omits S. No. 4B and its related entries, as formalized by Notification No. 144/2000 Customs.