GST rate reductions effective 22.09.2025 spurred demand and festive sales with some suppliers reporting sharp growth; authorities are monitoring e-commerce and major suppliers to ensure consumers receive the benefit. A nationwide GST Appellate Tribunal e-filing portal is operational with one-time registration, digital hearings and staggered filing windows for pending appeals, final cutoff 30.06.2026. GSTR-3B from 01.10.2025 disallows auto-population of ITC, makes auto-calculated tax liability non-editable and requires buyers to reverse ITC for supplier credit notes. A prior CBIC circular on post-supply discount evidence is withdrawn. Refund rules permit a 90% provisional sanction for system-rated low-risk claims subject to existing safeguards. Net GST growth for September was modest. The FAQs clarify that the new rates apply to supplies made on or after the effective date.