1. First and foremost be clear about your project work and internship work because this is the first question which they asked. 2. questions were mostly from my resume and whatever skills I had mentioned. 3. Questions were related to Timing constraints, Cross-talk, how to fix cross talk issues, Timing DRC's and Setup and hold violation. 4. difference between Physically and logically exclusive clocks? 5. What information is there in .lib file and what is a SPEF file and what it contains? 6. what inputs are required to fire STA Run ? 7. If you have worked on any tool like primetime or ICC then you can expect some questions related to commands. 8. some basic UNIX commands like grep, sed and awk related questions and some scripting related questions. 9. latch up issue and body effect , and how it affects and how can we fix up these issues? 10. questions were related to clock gating and power gating.