Arun Dev Builders — Refund of booking amount / possession of plot

Address:

New Delhi, Delhi, 110052

I had booked a 200 sq yds. Plot at shahpura project & had paid 50% cost. The co is not tracable and nothing is available at project site. Need help to trace the builders so that either i get the paid money or the piece of land. I had tried to find about the builders where about but failed. I may be informed of the contact help desk to proceed legally, if required.