Orior Developers — no allotment or delivery of plots by orior developers in karjat project

Address:

Gurgaon, Haryana

I have been aloted a 500sq. Yard plot in their karjat project for which i have paid almost 90% of amount.
They are always assuring to allot the plot since 2016, and now they have stopped picking up call and now there no phone is working, it seems that they have gone under ground. I am a senior citizen, please advice me to what to do and how can i recover my money. And whom to complaint about these cheaters.