Hi, I joined a US-based organization on 26th Oct 2014. The organization mentioned in their appointment letter that I would be on training for 3 months. They gave me 3 weeks of training, but the training module was not related to my job. After that training, they directly put me on live work, and I started doing that work as per the direction given by my mentor. I always asked my mentor if I was doing well, and she said, "Yes, you are good." Suddenly, they informed me that they are not satisfied with my performance and are terminating me. I asked them for the reason, but they simply stated that I am not performing well. Without any valid reason, they are terminating me. I want to file a case against the organization. Can I do this? What is the procedure? How much will it cost me?