Nextgen Data Solution / Worktypingjob.com — Has been cheated

I have joined recently and completed my 1st project successfully a week back. When I registered for this, they said that they'll pay me soon after they receive the work from me but it's been a week for now. Now they are not responding to my calls and messages. As per the mentioned document before starting the work they have asked me to pay Rs. 1900 as a security deposit and while working they again asked me to pay Rs. 2500.
As a total, I paid 4400 to them. Now they didn't even pay back my security deposit neither the salary.
The HR's name is Nidhi