GST schedule amendments change tax classification and rates for specified goods, altering exemptions and compliance obligations. The notification amends the Uttar Pradesh GST schedules by inserting, substituting and omitting tariff entries across Schedules I-VI, changing the classification and applicable tax treatment of specified goods (including tamarind kernel powder, mehendi paste, rice bran, LPG for household supply, bio-pesticides, bio-diesel, bamboo joinery, irrigation equipment, cigarette filter rods, sanitary ware, bio-fuel buses, and various precious and semi-precious stones). The amendments alter scope, exclusions and concessional treatments and are deemed effective from the stated retrospective date.