Job Search Net — Forcing me to pay 5900

I tried to complete the work...but this company gives so many work to complete in 7 days ...i failed to complete on time now there are asking me to pay 5900...or they take legal action...and they said they have my adhar card and pan card number.what that means they are blackmailing me...if it will be going like this I'll file complaint against them in a very legal way...they can't force us like this...this is there statement "If you fail to clear the matter then the company may take legal actions against you. For the same, we will be serving you the legal notice to your postal address against which you have to revert legally and we do have your Aadhar card & Pan Card details with us so, we can deteriorate your CIBIL rating as well in course of non-submission of your penalty amount. You can find lots of issues with your banking procedures also then." They has no right to force us like this, if they want I'll see them in court.