The Directorate of Enforcement (ED) on Friday arrested Nitin Gaur, the brother-in-law of Ajay Bhardwaj in connection with a Rs 6,606 crore cryptocurrency case against M/s Variable Tech Pte Ltd and its promoters for the GainBitcoin Ponzi scam. The arrest was made under the Prevention of Money Laundering Act (PMLA). The probe agency initiated an investigation based on several FIRs lodged by Maharashtra Police and Delhi Police against the company, its late founder Amit Bhardwaj, and other family members including Ajay Bhardwaj, Vivek Bhardwaj, Simpy Bhardwaj, Mahender Bhardwaj, as well as numerous multi-level marketing (MLM) agents.