Self Tech — Fraudulent

I was searching online part time jobs through google and I saw an ad of self tech company then I registered on that website. Some of their staff called me and told the details of their company. Then they told me to pay 799 rupees as an registration fee for security reasons and then they told me that they will refund the amount by adding 200 rupees as my first work payment. I trusted them and paid the amount. After that they started to ignore my calls and messages. I searched their website for more information and there shown like maintainance work is happening so that the website is currently unavailable will get back soon. Then I realized that I lost my money.
My humble request is to take further action against self tech and I need my money back.
Thank you!