Retrospective application barred: TPS notifications apply prospectively, requiring re-examination of claims and recovery where applicable. The judgment requires that notifications altering Target Plus Scheme entitlement and exclusions for 2005-06 operate only from their issuance dates, preserving original TPS rates and eligibility for exports prior to those dates. Regional authorities must re-examine pending TPS claims, issue additional scrips or recover wrongful grants after Zonal Committee due diligence focused on high-growth claims and pre-notification product exclusions, deny benefits where misuse is established, secure certificates confirming no government dues before release, and report fortnightly on implementation and recoveries.