Hello mitra haru, I need some legal help

My parents bought a car in Nepal from "TEJ AND KARAN" and paid 9 lakh as down payment 1 year ago. Rest of the money was applied through bank financing. This guy never pass the car in our name and eventually bank took the car back. Now we came to know that he used that money for his personal use and never gave money to the owner of this car.

Now what are our options?

Please let me know.

And now I found this link, that he did to another guy also. 

http://www.youtube.com/watch?v=mjNjYgZcnAE