1. Written test based on C, Operating System, and Data Structures.
2. Three face-to-face interviews.
3. HR round.

Note: It is better to read everything in detail. If you explain theory, they might say you will get good marks in theory, but that's not what they are expecting. Therefore, it's better to explain at both the hardware and software levels.

Written Test:

1. Object questions based on Mutex, C puzzles, OS, Data Structures.
2. Implement Producer Consumer Problems.
3. Calculate the sum of two polynomials.

F2F:

1. Process vs. Threads.
2. Why we need processes if we have threads?
3. What is a scheduler? How does it work?
4. Priority inversion.
5. Set the bits within a given range.
6. Memory allocation.
7. Endianness.