Their interview process was excellent. There was a written test, a practical test and three rounds of technical interview . I was selected after the technical interview and the final HR round was done through phone call after few days. The written test had questions on electronic circuits. There was also a section on PCB design for those who had prior experience in PCB Designing. The practical test was a trick question. We had to decide the resistor network in a opamp circuit to obtain a signal of specified duty cycle. It was a simple comparator circuit which takes a sine signal of 50 Hz frequency. The duty cycle will be determined by the voltage level given at the other terminal of the opamp comparator. The technical rounds went on for 2 hours and focussed on my work and experience in working with electronic circuits. They asked questions regarding my projects. There were few questions about electronics in general.