After applying for the job, I received a call from a hiring team member. He asked about my experience and the technologies I had used in my previous projects. After asking a few more questions about my CTC, expected CTC, notice period, etc., he scheduled a telephonic interview. He sent me an interview confirmation via email. I left office early to attend this telephonic interview, but I never received a call.

This is not the professional behavior expected from a company like BlackRock. They should have informed me about a change in timing or the unavailability of the interviewer.