1st online asssessment, basic mathematics and english nothing much if you are even decent in maths and english you'll ace it, then they have a group discussion round you just need to talk and have basic conversational english. Interview is mainly Java OOPs and web dev. It's not difficult you should know basic Java OOPs and normal questions such as final v/s finally among others I did it on campus so they did not expect a lot from college graduates. Web dev basics are important such as REST APIs etc. That's it then there's a nominal HR round with questionns such as how many people in your family and all