Citi Software Engineer interview questions

The interview was done on Friday(Not sure why they conduct walk-in interviews on working days). I went there at 9AM and they started the interviews at 10:30 AM. The folks who interviewed me were OK in technical skills but arrogant. I didn't like their attitude. First round was simple; normal OOPS and Java questions. Second round was more of design oriented. The interviewer asked me to design and write POC code for an order management system in 10 minutes. LOL. I couldn't really do it. By the time the 2nd round was completed it was 1 PM. As i needed to go to my office, I told them that i couldn't wait for further rounds if any and if required i could appear again on Monday. Anyway, i was sure that i wouldn't be called :)