Infosys Technical Analyst interview questions

There are three rounds of interview. 1) Tech round - No basic questions, only asked about current working projects. And what are the technology involved in it. 2) HR round - Normal questions about CTC n all.. HR has told that I will get a offer letter within 10 days and just leave for the day. But suddenly got a call from another hr to attend the third level of interview. 3) This round I don't guess whether technical or HR. He asked me about my current project and expected salary.