Help from Rera

For sure. just  file the complaint

Even before RERA, the consumer forums handled the complaint in less time and less expenses.  You may need maximum Rs.1,000/- to fight it out in local district consumer forum, and the formalities are less and the procedure is simple and most of the consumers file complaints as party in person, after serving a notice to the builder atleast one month before filing complaint.

Yes, you can seek relief through RERA also even if the company also is not registered with RERA.

Alternately you can approach consumer forum with your grievances seeking relief and compensation for the deficiency in service