Tech Mahindra Analyst interview questions

Walk in interview-first some questions related to JD(equity,capital etc) if HR thinks you have knowledge then case study then we waited for 6-7 hrs sitting idle.HR manager told after that he had some other work(?) so he said to come again tomorrow He was not ready to give details or talk.Full waste of time.There were some candidates from yesterdays batch also.so,in all lot of waste of time frustrating so i choose not to waste my time next day by going there I met some other people who have gone through same experience HR was asking each day to selected candidates to come again next day They don't care about candidates time,expenses anything.They just want candidates to sit there for hours I talked with other HR after asking her 3-4 times that for how much time we are expected to sit there she told me that they are expecting that candidate should sit there at least till 8.30 pm also some other candidates told me that they were waiting in company till 9-9.30pm go there & sit idly is the only funda