I got call from OYO HR and process took whole day. In my case 1 round was Skype round and 4 face to face. 1. Basic Android and some scenario base program over Skype screen share. 2.. Android start to deep 3.. Fully DS base Question 4. Design Questions After 3 round, HR told me your feedback was so positive. and 4th round- They have asked me 2 question 1. Cache implementation 2. Designing Questions. I have answered both question correct. Design question i have explained him by using MVVM design pattern. But at last He did not agree because of why i have not used MVP. My question is Why you want to hear only you know. There are some better thing in tech to do same task.