There were four calls with hiring teams. The initial call was just a general conversation, and the second and third ones were more about competency questions and the current position. There will be one more but It's been four months, and I still haven't heard back any updates from the team even though I emailed several times.

Four rounds in the process first round - aptitude second round - GD third round - Technical ( basic in all the subject in mechanical engineering) fourth round - HR Interview