Zenith System Solutions Trainee Software Engineer interview questions

First round - HR round... It was quite easy, we were told to wait for next round. After 1hr we were told to come on next day for technical interview as staff was unavailable. So we came the next day. After waiting for 3 hrs, someone from their staff told me that, "sorry we don't hire people who are graduating" . If that was only concern then shouldn't this be informed to me in HR round itself(one day before) ?? On the contrary they ask me to come next day for technical interview. Worst interview experience so far. Worst management. To add more to it, I applied for position for sql and because I argued, I was asked questions on Java, knowing that I was rejected even before I gave technical interview.