Technical, managerial and HR. The objective of the employer here is to see how you behave face-to-face. They’ve already read your resume and pre-screened you, so what they are looking for is enthusiasm, professionalism and your ability to think on your feet. Candidates who are short-listed get invited back for a second round of interviews. Possibly a third round too, or fourth and beyond the higher up the position is that you’ve applied to.