In a major crackdown, after getting tips from FBI, Central Bureau of Investigation (CBI) unearthed a transnational cyber fraud network that duped US nationals of $8.5 million (around Rs 71 crore) through a fake call centre operation in Noida. As part of “Operation Chakra”, CBI with assistance from FBI, carried out a coordinated campaign in 10 states including UP. Most of the raids were conducted in Noida, Delhi and Kolkata.