The Justice Department recently indicted one Indian company for scamming “hundreds of millions of dollars” from over 15,000 victims, placing more than 1.8 million phone calls to Americans. Call center employees would impersonate U.S. Internal Revenue Service officials and would threaten Americans, demanding immediate payment to cover back taxes. In fact, no back taxes were owed.
According to The New York Times, two India tech center employees eventually informed on their call center fraud operation. The building was surrounded by police and phone lines cut. Eventually 630 of the employees were released, and charges were brought against 70 managers and executives of the call center.
You can read more in an article in the Voice of India at: https://goo.gl/JE33Mb.