Drawback scheme misuse through over invoicing and document manipulation prompts customs vigilance and investigative action. Large scale misuse of the Drawback Scheme in exports of cotton knitted garments through ICDs in Tamil Nadu involved willful over invoicing, namesake exporters, and document manipulation to claim inflated drawback. Fraudsters procured IECs and bank accounts for benami firms, exported to non quota destinations on vague purchase orders, and declared FOB values far above market rates. The scheme included post detention revision of shipping documents, non filing of GR forms to evade RBI monitoring, and use of banks that do not verify shipping paperwork, prompting Customs field formations to be alerted and investigate.