3 rounds excluding the phone interview Phone was a screening round Python coding round Complete explanation of Project work in Masters Transistor level round- Went deep to the extent of explaining the drain current equation Managerial round was the final round

I got an email from the hiring manager saying they needed to talk more and ask me questions, we set-up a date and time, the interview duration was 30 mins, so I thought it would be an introductury interview. it wasn't, it was a full interview that the hiring manager and another senior engineer attended. we all introduced ourselves and what we do, and then the technical questions began but there was barely any time left. so the interview was concluded,