Was fairly decent & good. I am interviewing for start ups for the first time. Valuable lessons learnt. Starts with phone screen, interview with director, then with quality manager & software engineer (with coding exercise). Then with mechanical engineer and final with electrical engineer. Lesson learnt by me, its not over till its over. I did not have the mental stamina to go through of 6 rounds of interviews and did not even bother to ask what will be the topics to be covered in the final 2 rounds. Could have been better prepared. However its fine. I will learn my valuable lessons to go forward. Everyone were pleasant. If provided another opportunity will do better for sure. Am a hard working person who learns from mistakes.