GST rate changes: select oncology drugs added to lower-rate list; extruded snacks and motor vehicle seats reclassified. Amendment to the CGST rate schedule inserts three oncology drugs into the lower-rate list, adds an entry for extruded or expanded savoury or salted products to the intermediate-rate list while expanding the description of un-fried or un-cooked snack pellets to include such products, and revises tariff descriptions and separate entries to reclassify seats used for motor vehicles into a higher-rate schedule; the changes are effected under statutory rate-notification powers and take effect on the stated effective date.