I applied through college. The process was for a day. The hiring team gave a brief introduction about the company and its goals and expectations. There were 5 rounds. First, screening round which was an online test consisting of aptitude and core related topics. The questions were of the GATE level. Out of a batch of 120-130 students around 20 were shortlisted for the next round. This was a written coding round. 5 questions, with 3 simple and 2 challenging questions. The languages they recommended were C,C++, Python. But they focused more on the algorithm and approach(hence the written test I believe). From here 7 were shortlisted. From here on, all the members of the hiring team except HR took the technical interviews for all the 7 shortlisted students followed by the HR round. Finally, around 3 were shortlisted and selected.