Total scam. I called the number back and ask the lady the following questions:
1. What is the the Capital of the United States
2. Who is the Vice President of the United States
3. What is the Capital of New York
4. What day is tax day in the United States

She could not answer any of these questions. I know we like to pick on the IRS, but it seems to me that if this person worked for the IRS they should have been able to answer a couple of these questions...
District of Columbia
 Mar 31st, 2015
More call are going out from the same phone number and caller ID of US GOV DGN CPX. And Indian woman is laving a message for me to pay my taxes a law suit is being filed for my arrest and my non-bailable arrest. That is a new one, because you know the IRS usually uses call centers from India and makes house calls. TAX SCAM BEWARE!!
 Mar 31st, 2015
Received a call/voice mail message 3/27/15 regarding a warrant for my arrest from the IRS. This is the second call I have received regarding this fraudulent claim. The first call was received on 3/26/15; the caller ID was "Virginia" and the phone # was
1-703-828-0433 . I researched the phone Number and there were multiple complaints about this related scam with warnings to expect multiple calls from varied phone numbers. This Scam appears to have been been operational since 2013 and "they" have allegedly collected over thirteen million dollars from elderly or other innocent victims. I contacted our local Police Department regarding the threats that were being made about a warrant for my arrest etc... The police department is aware of the scam and warned me to be cautious about strangers actually coming to my home demanding "money order" payments. If this occurs, a 911 call is advisable.
 Mar 29th, 2015
I also received a call this morning. Tried to direct me to pay via electric bonds. I asked why weren't documents mailed to me on this. The caller claimed that there were two attempts to deliver, and the letter was left at my door. Impossible--I live in a building with a doorman. It would have been left there, or I would have been notified. I told the caller that the call was fraudulent, never call back again, and that I am reporting it to the IRS.
New York
 Mar 28th, 2015
I received a call from this # today , 3/27/15, and I was told to call this #,301`-640-5377, in regards to a law suit. And if I didn't that a warrant for my arrest would be issued. My name was never used, nor was what the law suit was in regards to. Definitely a scam, but make to sound serious. My caller ID showed 301-729-6397 to be the caller's #, and US GOV DGN CPX was the identifying label.
Mike Knight
 Mar 27th, 2015
Numerous threatening calls from this number, claiming to be IRS. South Asian Indian accent. Male and female. Live and recorded. With demand to call other numbers, such as 301-273-1082, unlisted and so far not traceable.
 Mar 27th, 2015
If someone calls claiming to be the IRS with threats of arrest for non payment or other and you know you are innocent, fill out the “IRS Impersonation scam” form on TIGTA’s website, or call TIGTA at 800-366-4484
 Mar 27th, 2015
Caller was a recording claiming to be the IRS. Said I need to call back or be arrested! BEWARE....TAX SCAM!!!
 Mar 27th, 2015
Another number for the unpaid taxes scam.
 Mar 27th, 2015