I had given an online programming test initially which is difficult. Then there are four rounds of interview. The questions are of medium level and they are related to probability, discrete maths, data structures and algorithms and puzzles. The interview process is very smooth and at the end they answered my doubts and concerns very patiently.

2 online rounds. 2 offline rounds. Maths (prob stats) + CS basics. This all was normal. The crazy unethical part was that the day I interviewed with them, they told my current employer that I was interviewing with Plutus . (crazier considering they approached me). It could have put me in a lot of jeopardy, but thankfully it did not (Kudos to my current employer). I did not join them for this unethical behavior . I am glad that I made this correct choice in retrospection and continued where I was.