They came to the college campus ..first step is a written test.first step is a written test part 1 aptitude questions on ages,train..etc &part 2 basic questions from basic circuits, opamps,signals&sysems, all are basics... I then they called for the onsite interview in chennai campus its is about an hour ...In two members in the panel it is fully technical interview..they .check the thorough knowledge in your projects...