Investigators say the GainBitcoin case involves about 8,000 investors and losses estimated at roughly 6,606 crore rupees ($790 million). India’s Central Bureau of Investigation (CBI) has arrested Ayush Varshney, co-founder and chief technology officer of Darwin Labs Private Limited, in connection with the long-running GainBitcoin cryptocurrency fraud investigation. According to a Wednesday press release shared via the CBIs official X account, Varshney was detained at Mumbai airport on Monday while attempting to leave India after a Look Out Circular had been issued against him. He was formally arrested and handed over to the CBI on Tuesday. The CBI said Darwin Labs played a central role in building the technological infrastructure used by the alleged scheme, including the GainBitcoin investor platform and associated tools used to manage payments and wallets. Read more