Arun Dev Builders Pvt. Ltd. — Cheating case

I have applied for a plot in their project situated at Dehradun and paid Rs. 1, 70, 000/- against the booking of the plot. They failed to deliever the project even after passing of more than 4 years. Thereafter, they convince me transfer my investment to one of their project coming at Jasana Village in one of their group Company. I have started paying instalment for the same but after payment of 8 monthly instalments, it appears that they don't have any project and they are showing me wrong picture. Till date I have paid approx. 3.75 lakhs of my hard earned money to them but they are allotting any plot nor refunding my money. At present i am facing financial difficulty and want my money back from them along with interest. Kindly help?