There is a huge case study on rating the difference sustainability report, which took me 1 week to prepare. 3 rounds of interviews, HR - Case study and manger/senior manager final round.
I applied through a staffing agency. I interviewed at ZEISS Group (Bengaluru) in July 2017
Interview
About business process initially through telephonic round, then after after 1 month they called me for face to face discussion then German team interviewed after that had a package discussion but they were not offered as i expected, but the company looks so good,it is basically product based company, the campus of company looks so good, but campus is to far from the Bangalore city