Synechron Power BI Developer interview questions

I was selected by third party sierra solution for this interview , directly to synechron HR and technical round. I was interviewed by the person who was part of team in synechron company only. He did not give any introduction and asked me 50+ questions in 50 minutes interview. The Indian guy was making sure to drill me in most of questions and did not correct me or provide me exact answers as per his knowledge. After this drilling interview on 24 september , mississauga ontario , HR GHOSTED ME WITHOUT FEEDBACK. This is total waste of time and bit harassing that these Indian companies interviewing Indian candidates here in Canada and belittle them in such hard time of recession.