Persistent Systems Software Test Engineer interview questions

I had attended the interview, I have answered the all questions...but still they rejected for my suprise.... Dont know why do they schedule even interviews....I had terrible experience with them...

Interviewer was not intrested to take interview they took for name sake and they where so late that it was already 4 hours of delay and I did not feel the place very good to do work hence no employee was in intrested to do work