GSTR-1 and GSTR-3B mismatch requires verification of its cause,...

GSTR-1 and GSTR-3B mismatch requires verification of its cause, reconciliation with liability records and subsequent payments, and a determination whether tax remains unpaid; a numerical difference alone cannot establish short payment. Input tax credit reversal demands require a separate statutory basis and computation. Ex parte disposal following non-appearance remains subject to a reasoned determination of material grounds. Statutory claims concerning interest and penalty waiver, service of notices, and duplicate proceedings require examination against applicable conditions and records. The appellate order was set aside and remanded for fresh determination of actual liability and statutory claims.