Psychometric Test. Consisted of 60 questions to be answered in 30 minutes. The round is to test your thinking ability. Various repetitive questions to test consistency of answers. Time alloted is less so that answers given are natural, and not thought-of.
Technical and HR round, combined with 2 panel members. One interviewer for asking technical questions, and another for asking HR questions. Technical questions were of medium level from core chemical subjects and a few chemistry questions. HR round had basic questions which are generally asked.
Go prepared with your important core subjects and try to convince them as to why you are willing to work in a plant.