I interviewed at WalmartLabs' Bangalore office. I had two rounds of interviews, which went pretty well. I was informed by HR that I had cleared both rounds, and that the third-round interviewer was unreachable. The interview would be scheduled for another day.

HR completely lost track after that. Even after repeated follow-ups, the next round was not scheduled. This was highly unprofessional of her. There is no point in wasting a candidate's time if you do not intend to hire.