It's the worst interview process which I ever had in my life. I waited for long time(2 hours) and after that I was called for HackerRank online test (1 hr 30 mins).

Once cleared that they asked me to wait (40 mins)for pre screening round on same day. Once completed it, interviewer informed that still you will have 2 more rounds to complete.

After 2 days that I had been informed that I failed in the pre screening round.

Why this contradictory ?

And also I am not sure that why they conducted that prescreening round since I took online test in their premises itself.

They need to follow some ethical and professional process hereafter at least.

I have questions about the online test.