Same experience. The caller said his name was Jason and the number he asked me to call was 800-711-0816, answered by a Fred Dion. Both Jason and Fred had a clear Indian accent.

Got a scam call from this number. Claimed to be from the Department of Justice, Financial Crimes Enforcement Unit (Although the Financial Crimes Enforcement Unit is clearly part of the Department of Treasury). Said a form 61 wasn't filled out so there is an arrest warrant and he could take care of it within an hour :). I asked him to point me to that form on the website and he said this is not a public form :). Once I called him on his scam he got abusive. His accent was clearly South Asian - Most likely Pakistani.

Reported this to FTC.GOV, IRS as well as the FBI.