Shovia Services — fraud company , taking money by blackmailing

They offered me a link clicking job and said that you will get paid after 10 days, after 10 days i got a call in which they are saying that you have violated our terms and conditions as per agreement, and demanding me 6500 /- and if i will not not give then a case will be filed. I am a student and i was having shortage of money due to which i was searching for part time job and i got trapped in this, this is totally fraud company, instead of giving me my salary they are demanding money from me, this is a complete circle in which they trap students like me !! I need help, I don't have money, now what to do, someone please help they are demanding 6500/-