3 Rounds, First is written, second is GD and third round is case study and interview based on case study.
Written covered all production related concepts including lean, industrial engineering.
GD was on random topics and regular preparation is enough to clear it.
Case study was on 3 topics, Industrial engineering, Manufacturing and Instrumentation control. We can choose any 2 topics to answer and interview was majorly on the answer given for the questions in case study