Earth Infrastructures — Fraud builder

We have booked 4BHK Flat in 2012. They have promised to give possession in 2014Oct. I am a NRI and my parents who is 77 and 78 years old has also booked with me. They have spent their entire retirement money. Everytime I visit to India I visit the site and see only a pit. Now the site is so dirty and there is no trace of construction. We want our money back but they are not giving refunds.