First round.

It was a pen/paper round. We had two papers, the first one was general aptitude questions and the second one was related to computer science fundamentals. The second paper had 15 multiple choice questions related to networking, computer architecture, compilers etc. It also had 5 subjective questions out of which 4 were coding and one was related to cloud computing.

After this 14 were selected and there were two technical rounds and one HR round.

TI one First he asked me about my projects and research papers. I had to explain everything related to these. Next he gave me three questions -

1. Binary search in a sorted array.
2. DFS traversal of a binary tree.
3. General block diagram of backend of YouTube.

TI two First he asked me to tell something about myself, my aspirations, what can I do in the company, my strengths etc. Then he gave me a coding question of equilibrium index problem. Then he also asked about my projects and papers and how would I be beneficial to the company.

HR interview General questions related to myself, introduction. I was asked about previous offers from any companies.