TDS on purchases: buyers above turnover threshold must withhold tax when payments to resident sellers exceed the prescribed limit. A new provision requires a buyer meeting the prior year turnover criterion to deduct tax at source on payments to a resident seller for purchases of goods exceeding a prescribed monetary threshold, with deduction due on earlier of credit (including to suspense accounts) or payment. The definition of buyer references prior year turnover and exclusions by notification. The Board may issue binding guidelines, with Central Government approval and parliamentary laying, to address implementation difficulties. The section excludes transactions already subject to deduction or collection under specified Act provisions.