GST rate schedule amendment updates classifications and applicable rates across multiple goods, altering taxable treatment and exceptions. The notification amends Punjab GST tariff Schedules I-VI by inserting, substituting and omitting specified goods and tariff entries, thereby altering their GST rate classifications and scope (including additions such as tamarind kernel powder, mehendi paste in cones, liquefied petroleum gases for household supply, listed bio-pesticides, bio-diesel, bamboo wood joinery, sprinklers and irrigation equipment, buses running on bio-fuels, cigarette filter rods, and others), and refines exceptions and exclusions; these changes are declared effective from the stated operative date.