• Match purchase ledgers with GSTR-2B• Confirm no ITC claimed on blocked items under section 17(5)• Verify that all supplier invoices are recorded and paid, or shown as outstanding• Ensure TDS has been deducted on all applicable payments (rent, professional, contractor, interest, etc.)• Verify RCM liability on GST has been identified, paid through cash ledger, and ITC taken (if eligible)