Cognis Solutions Senior Software Developer interview questions

please don't waste your time. They don't have value of your time. First round was techincal and asked some question and I answered all of them then they selected me. For Second Coding Round HR will not receive your call even you called again and again. Then after 5-6 days they will call you and scheduling your interview. After this if you got selected in this round HR asked for scheduling 3rd final managerial round . And this round will not happen. He will not taking interview and always delaying interview. 4 times my timing rescheduled by HR, then also interview didn't happen. So, please don't waste your time in a company who don't have value of interviewee time. I don't believe to give bad feedback for anyone. I attended almost 20-25 interviews but this experience was very bad. Thanks.