First round was Coding - given a problem of finding number of days b/w start date and end date without using any library methods. good thing is you can do it in language of your choice.
2nd round is about building an automation framework, they ll give you a sample scenario like you need to login to a e-commerce website and then search for a product, add it to cart, click checkout and logout.
3rnd round : Technical all concepts will be checked in this round it will be long and tough round. Test Strategy, approach, tools, API Testing, Test Pyramid(refer to martin flowers test pyramid)
Were the questions asked for me. They might give you a scenario and ask you to break down it into sprint wise and come up with testcases for that.
After that there will be leadership and values(P3) round.