<h1>GST fraud via circular trading uncovered; shell companies used to procure and pass fraudulent input tax credit, mastermind arrested.</h1> Investigation by the Directorate General of GST Intelligence Bengaluru unit uncovered a network of six shell entities that issued and used fabricated invoices to claim and pass on fraudulent Input Tax Credit, with original invoices and seals recovered at the mastermind's premises. A chartered accountant/statutory auditor functioned as director in some entities, linking the structure and transactions; searches were conducted, and the key mastermind has been arrested. The unit has shared intelligence with securities regulators to address related risks to investors.