Expat Properties — Expat Properties a fraud company still 10 years waiting for property registration

My, booking id- B1000748 with expat and am a customer from Navi Mumbai Panvel. We have booked two 1-acre plots in expat Anahita project
during 2010 and 2014 with booking with a total consideration of 500, 000 INR per One acre.
We have paid all the monies and we have payment receipts.
We have been chasing expat ever since, to register the plots. There are so many people who we were in contact with, and no one
takes responsibility or accountability to answer and resolve our queries. And now no one responds to phone calls, in Mumbai, Bangalore offices.
Finally when we understood we are not getting responses, we
Following are the names of people we have corresponded with over the years. Arathi Gupta, Jayshri Ramesh Rathoud, Adwait Dilip Jadhav, from Bangalore & Mumbai office,
Next steps:
Who is the relation manager?
What is the escalation path of customer queries if they dont get resolved.