Got a call from this number. There was a gentlemen with a very heavy Indian accent on the phone, claiming to be calling from the "federal government office". He was stating that I have broken 3 laws (one related to mis-filing my taxes, other two related to providing confidential information to other countries), and he said that they were going to report me to the police.

I ended up ignoring them, and asked them to indeed report these to police, and that I can work with them to prove this is all a hoax :)