Zara Roma Project Delay: Seeking Justice

We had applied for the Zara Roma project to be built in Sector 95B Gurugram through the website of tcpharyana under the affordable housing project scheme of the Government of India. The names of about 600 people came in the draw. After which the first installment was also taken by the builder. 6 months after the draw, it was found out that the builder has not started the construction at all. On talking, it was told that the place where this building project is to be built is inside the bird sanctuary. And the NOC has not been given to the builder by the Bird Sanctuary Authority. Due to which the builder has gone to the High Court. We have given 6-7 lakh rupees per person to the builder. We have also been made to sign BBA. It has been 2 years since these things happened. Many of us have also taken a loan from the bank and are paying the installments. Now we want to get a flat as soon as possible. What should we do, where should we go? Please suggest."