Job Search Net — Threatening messages

Got a message on the Shine Job portal regarding the data entry job. I called him (phone number - [protected], her name was Komal). She told me about the job and did not mention the portal charges at all. Then, signing the paper in a hurried manner (i want to read but she did not give time) and constantly told me to go Next. Next.
Now, after refusing to do the job on the very next day..she is threatening me..that they will take legal action or pay 5900 rs as a penalty.
Please help anyone..
I am going through a mental trauma due to this.