There were three technical rounds.
1. Telephonic Round with basic Android questions.
2. Task Round - Given a Slot booking Android app and need to submit within 3 days.
3. F2F Round - Android, Kotlin, Architecture patterns, Bug fixing, Java logical questions, general programming questions etc. It took more than 2 hrs.
After clearing all this process had a general discussion about work culture, My previous experience etc with CTO.
Finally i got offer after 2 days.