GST rate amendments reclassify goods across rate schedules, adding and omitting tariff entries and special allocation rules. Amendment revises CGST rate schedules by inserting, substituting and omitting specified tariff entries across the 2.5%, 6%, 9% and 14% Schedules: adding items such as tamarind seeds (non-sowing), biodiesel for blending, a named oncology drug, retrofitment kits for disabled vehicle use, a defined list of renewable energy devices with a value-apportionment rule when supplied with taxable services, multiple metal ores and concentrates, plastics scrap, specified printed matter and railway rolling stock, and carbonated fruit beverages.