Xoriant Senior Python Developer interview questions

The level of interview is very easy. I cleared the first round very easily. The second round was client round, where the client wanted someone who knows python, flask, django, rest api, relational database, non-relational database, CI/CD, docket, kubernates and cloud. I am like, do they want a person or the entire IT team. I could answer all the python related questions, but still couldn't clear the round. Then Xoriant people kept one more round, this was within the company itself, where they said they would understand my requirement and assign me client accordingly. They asked what were my skills, was I ok with the automation work etc etc. I said I am ok with it. Then no call for an entire week. I called the HR to get the feedback and they told me I got rejected. I am like, on what basis did you rejected me. She didn't had answer. They simply wasted my time. So guys please be clear for that they are interviewing you. They might simply reject you for no reason.