Excise duty amendments revise tariff classification and introduce new taxable items affecting soap and industrial inputs. Amendments to the Third Schedule revise ad valorem excise duties, insert explanatory definitions (including that instant coffee includes blends and that carbon black is excluded from one item), modify product descriptions (caustic soda/potash, yarn, textile fabrics), add shaving creams to a category, create a duty entry for smoking mixtures, restructure soap into household/laundry and other categories, add a cotton fabric subcategory with non cellulosic content, and introduce new tariff items (tool tips, wire ropes, carbon black, rubber processing chemicals) with specified rates.