The interview process is divided into several rounds. At first company introduction was presented then written exam is taken questions on technical subjects as weel as on aptitude, then interview took place.
I applied through college or university. The process took 2 months. I interviewed at Linde
Interview
There were first aptitude test and technical test which both are combined where 40 questions are from technical and 10 questions are from Aptitude. All the Technical Questions are from basics and aptitude were quite easy