Model N Principal Software Engineer interview questions

Interview Process is good. I applied using Naukri.com, Initially fitment call with HR then called for an Interview. All the rounds happens same day, this is one of the few companies where all the rounds are done in a single day. 1st Round covers: Data Structures + SQL + Java Basics > HR told its Positive feedback just after interview for go-ahead to 2nd. 2nd Round: Object Oriented Design > HR told its Positive feedback just after interview for go-ahead to 3rd. 3rd Round: System Design & Current Project Related Questions. > HR told its Positive feedback just after interview for go-ahead to 4th. 4th Round: HR Manager At the end of all the rounds HR told me that all is positive and he said he will request for my documents next week, hearing that I am very much excited. I waited for 1 week and called HR, he told me about the feedback which now turns to negative after the discussion. HR - Please don't give false commitments and expectations after the interview if you are not sure, collect meticulously and inform within 1 week. Rest all good.