There were three rounds-one aptitude test rounds, one technical interview and one HR interview. The aptitude test required the students to solve questions on electronics and circuit theory. The questions were not MCQs. A sheet was provided where the students had to write down the answers. Rough sheets were provided which had to be attached with the answer script. The questions were on op-amps, signals and systems, MOSFETs and circuit theory. There were questions on A/D converters and DSP as well(hardly 2 or 3). The duration was 2 hours. 10students were shortlisted. The interview round lasted for more than 2 hours(for people who were not selected, it lasted for shorter periods of time). The questions were based on questions asked in the aptitude test albeit, more difficult and required a greater clarity in concepts about feedback, Laplace transforms, RC circuits and Fourier transform. But the interviewer was helpful and was giving hints when I got stuck and was able to solve them. The HR round was more on why I wanted this job etc.

There were questions related to RC circuits, steady state, diode circuit, Truth table of given Digital circuit, Op amp basic configuration outputs. Concentrate mostly on RC circuits. The first round had 20 questions and time given was 1 hour. They don't expect you to solve all the questions. They observe your working sheets. Second round was descriptive answers round. There were questions again on RC, resistors combinations, Timing constants. It had 13 technical and 3 aptitude questions.