Danfoss Engineer interview questions

1st round is Resume Shortlisting. Then, 2nd Round is Technical Interview. Then, 3rd Round is HR Interview. Resume should be good. All Skills, Previous Work Experience, Any Project done before, Educational Qualification should be mentioned.

Interview process very bad. There was not direct contact from the company. A HR firm communicated on their behalf. Very poor professionalism. Despite clearing all rounds and completing psychometric analysis, my application was rejected and no explanation was given