There were three rounds. There were two written rounds followed by an interview. The first written round was an online MCQ test which had questions from quantitative reasoning and basis electronics(both digital and analog). The second round was a design question where one had to interface a microcontroller with a motor-driver to control the movement of a robotic arm by taking a differential voltage signal as input. Data sheets for all the necessary devices were also provided along with the question. The next round was a face to face interview round where I was asked a few questions related to my second written round and a few other questions regarding analog electronics.