Karnataka's Commercial Taxes Department has busted an interstate fake billing racket involving transactions worth Rs 1,464 crore. The syndicate allegedly generated fraudulent invoices for cement, iron, steel, and construction materials across Karnataka and Tamil Nadu, leading to wrongful availment of input tax credit amounting to approximately Rs 355 crore. Four individuals have been arrested in connection with the scam, which involved using forged documents to obtain GST registrations and create shell companies. Seized items include mobile phones, SIM cards, bank statements, and company seals.