Got call from one of client. Interview scheduled next day only. But they did not explain about profile in detail. I mean what kind of question they are going to ask.

First of all the interview timing was 9 am to 10 am and I reached the campus @ 8.30 am and waited till 11.am for the guys to get my resume for screening. People were called in batches of 5 for interview and i too was called by 12.30 pm with 4 others. 3 candidates from batch were undergoing their respective interview when other batches were also brought into the cubicles. While others from other batches were being interviewed, me and the other candidate from my batch were waiting for our chance. And even though the time crossed 4.30 pm, we were still waiting. Upon questioning the HR, i didn't get any proper answer. I had to waste an entire day with hunger, tiredness and irritation just for an interview. And i don't think that it is fair