Two technical rounds with manager and senior test engineer. A ppt presentation on the day of the interview followed by 3 tech rounds and 1 hr. Once you realize that they are selling you on the job a lot and the interview is really hard, you may be the second choice candidate. The manager would have made the first choice before hand and keeps you as second choice. Observe the importance you get, the more they make you believe that you're seriously contending in the interview, the more the chances are that you are the second choice. Don't waste time on the ppt, pretend like you're putting effort and make a mediocre one that is presentable. It's sad that they have such a toxic interview process for test engineers.

Very streamlined process, applied somewhere in the beginning of February and immediately got an OA, which consisted of 2 LC type questions (one graph based, and the other based on intervals) and Matlab MCQ questions. Later was contacted by the manager to schedule a quick 15 minute interview where she talked a bit about the company and asked BQ + some questions about resume. The last round included 3 back to back interviews over 4 hours (Technical-> Manager -> HR). Technical round involved an OOP based question and a LC styled question along with some questions about projects. The next two rounds were strictly behavioral based. The interview process was very smooth! Received a verbal offer within 3 working days followed by the formal offer. Whole process took around two months.