Infosys Senior Software Developer interview questions

Group panel interview over the phone. There were five people on the conference call. One developer from offshore. In depth technical interview. The questions are from a variety of topics core java, maven, spring, git

I got call from HR and telephonic interview was scheduled. I gave the interview (technical), it took around 43 mins on call. The few days later HR called me saying you are selected and this package and all will be given. And then she said offer letter would be sent soon but it didn't. I tried contacting to which i got no positive response. Then HR asked me to give another interview for Pune location, which I gave and then they started ignoring my calls. That was really unprofessional for a company of such scale.