The Interview had 5 rounds:
1. Written test( Only for freshers): 50 multiple choice questions which included basic electronics, digital circuits, and c language.
2. Technical-1: They ask you about basic c questions and about your projects, make sure you know everything about the project as questions can be asked in-depth about the concepts in your projects.
3. Technical-2: In-depth C concepts and Embedded Systems basic concepts about Microcontrollers.
4. Managerial Round: Heavy concept-based questions on hardware level questions.
5. HR Round: This is just salary discussion and general talks.
I got selected and accepted the offer. Salary is comparatively low but the work is core technical embedded systems R&D, Development, etc.
