I had applied for the job position and got a call from the HR for an initial video screening. Next video call round with the Director and it was technical as well as behavioral.
After a week, there was a video screen with 1 hour written test online with 4 engineers. The test consisted of RF basics and lab on hands knowledge based questions.
After few days they invited me to the on-site interview which lasted for a day with written exams and lab exercises.
I was offered the position after the on-site interview.