SVC Clause Applicable , however if firm invoices the goods at GST Rate or HSN Number which is different from that incorporated in the purchase order, payment shall be made as per GST Rate which is lower of the GST Rate incorporated in the purchase order or Billed. For which firm would be required to adjust basic price to the extent required by higher tax billed as per invoice to match the all inclusive price as mentioned in the purchase order. On reduction of rate of tax on supply of goods and services, the benefit of input Tax Credit (ITC), shall be passed on the recipient by way of reduction in prices.