Hexaware Technologies Technical Support Engineer interview questions

I got a call from HR regarding interview and followed by email. I went to the office on 16th April as they mentioned. Already walkin interview also going on there. I was not able to find the correct guy to reach out. I asked me to wait for some time. Then then send 10 people to same room and HR came ask some general questions about work experience. Main disappointment is salary negotiation.How they are asking about salary expectations in front of other candidates? Then he told your HR will contact you. You may leave now. That's all No technical round or anything. It was not even like a interview. They were polite but no work ethics or proper protocol. Feels like went there for nothing. Kindly conduct proper interview.