Diebold Nixdorf Software Engineer Java Developer interview questions

I applied through a recruiter. The interview was of a technical test then a face to face interview in Citywest business campus. There were a mixture of technical and HR related questions. The hardest part of the process was the technical quiz that had to be completed within one hour

I got interview call letter from some consultancy. I came from pune to mumbai only for interview. After reaching place I need to wait for 30 minutes for interview. I did well interview and answered almost all questions after that they told me to sit outside. Again they took one more interview but that is only for 10 minutes. After that they told me to sir outside and later I have been informed that you leave the day hr will update you result . I was happy that i did well but i haven't got any call from HR I contacted consultancy they told me that i am not selected. They also told me they received same response for other candidates also. When every one is doing good how can no one got selected??