Just had a message left on my answering machine from "Sebastian", who spoke with a veddy veddy dick Indian accent to inform me that he was from the "auditing committee department" of the IRS and letting me know that "there was a miscalculation in our tax returns".  I should contact him at the above number to "resolve it before it goes to the courthouse" since "a lawsuit can be filed".  What was even more hilarious was that he stumbled over the above call back number.

Message to Sebastian: take yout audit and shove it where the sun doesn't shine!

I also rec'd two calls today from the same # demanding me to call back to Sherri, very broken english. They would call my employer in reference to the amount I owe IRS and freeze all my bank accounts, S he said it was due to issues from 2008-2012 and just now detected in 2014. Well where is the mail notification from the IRS?? The call is from California!!
I will also report the call and yes for what good it will do. Glad I read your post. Figured this was going around.

A follow-up to my earlier message of today.  Lucky me got another call from "Sebastian" about two hours after the first one.  I strung him along for 10 minutes and got him confused enough that he had to 'put me through to the supervisor'-- "Mr. Parker", another person with a veddy veddy dick Indian accent.  So, I strung him along to waste another 15 minutes of his time, throwing out a lot of tax mumbo jumbo about the totally bogus depreciation on the oil and mineral rights of my seven oil wells in Texas, my earned income credit, IRS forms 6671 and 2584, my previous IRS audit, etc.  When he told me I could pay my tax shortfall, variously put at $1,800, $2,963, or $3,400  (geez, guys, can't you even get your scam act together?) at the IRS office in West Virginia -- in Parkersburg, of all places! -- and asked me what I'd like to do, I told him I'd like him to stop trying to scam people and that I had already reported them to the Federal Trade Commission (for all the good that will probably do).  

Just got a call today as well and yes, very thick Indian accent said the exact same thing, that there was a mistake on my taxes from 2008-2012 and they was a law suit against me in court.  The funny thing is were this correct they would be asking for both myself and my husband since we have filed jointly since before then.  Seriously, where do these people come from and why is it ok to try to pull these kinds of scams???  

It's not OK and they are hard core Indian scammer/extortionists.  As such the are beyond the reach of US law.