After resume shortlisting, there were three rounds. Round 1: Mostly from the topics mentioned in my resume — basics of embedded systems, power optimization, RISC vs CISC, and microcontrollers like 8086, 8051, and ARM Cortex-M. Round 2: Focused on OS concepts and practicals, including reverse linked list, general OS fundamentals, and power-saving strategies in general-purpose operating systems. Round 3: A general discussion round with logical and reasoning-based questions.