Expat Properties — rishika project at mangaon not delivered

Address:

electron beam center, sector 7, cbd belapur, Mumbai City, Maharashtra, 410210

Project is delayed by more than a year and now no one is picking up the phone. I doubt that they may be planning to run away. All their contact numbers are simply ringing and no one picking up the phone.
Can someone help in getting refund of my amount or getting the possession of the plot?
Also, it appears that many other investors have also not got the possession. I enquired and visited many of their properties before finilasing the deal but now it appears that it is fraud company and may be even escaped out of the country.