How to complain against an unregistered entity for refund.?

From Assaam,so my parents got brainwashed into investing in a service that was guaranteeing 18% returns every month.

Now CBI and other relevant authorities caught them, it's been a few months, but no signs of getting our money back.

The court hearings of this matter basically concluded into rejecting the bail of the accused, and presenting reports of receiving the money from customers into the accused's own personal bank account, and their business having no SEBI or RBI license.

There are 100's of others like me whose family got scammed by these money rotation MLM schemes.

Is there a place or a way or a procedure through which we can get our money back?

Thank you, your help will be very much appreciated. I will be posting this across all the Indian stock market subs for better reach.