Attended the first technical round as per the schedule, the interviewer initially looked very supportive, but later he showed very unprofessional behaviour when I could not solve a basic(prime number) problem in a given time. As a senior professional you sometimes forget the logic for a basic problem and the interviewer has every right to reject us. But he actually told that this is basic problem and you can't solve it, and he ended the call abruptly. He interviewed me for more than 30 mins during which I have mostly answered very well, only that problem I couldn't solve. He could have asked to solve another problem or respectively ended the call. Let me clarify that I have no issues for being rejected for a single problem but I expect some professional behaviour from interviewers.., I did not expect this from a company like Ness' interviewer.