Customs duty revisions reshape import/export taxation and exemption regimes, with provisional and enacted changes following the finance proposals. The Finance (No.2) Bill, 2024 and related notifications propose comprehensive revisions to customs, central excise and GST law and rates, including immediate provisional tariff changes, sectoral basic customs duty adjustments, consolidation and review of conditional exemptions (extensions, continuations, lapses and removal of end-dates), amendments to procedural and origin documentation provisions, new tariff lines and countervailing rules, and multiple GST amendments affecting taxability of specified inputs, retrospective input tax credit relief, demand notice time-limits, appeal pre-deposit thresholds and refund restrictions where export duty applies.