I had applied through my college placement. They had an aptitude test which was very hard and it had negative marking too. It was hosted by HirePro. Once you clear the aptitude, you get two video questions that you need to record the answer to. These two videos are then processed by the company and they will call you for interview. It was initially a single round of interview, but for some applicants they did multiple rounds. The interviews were not very technical since the job profile isn't of programming. It was more of a knowing our concepts type of thing and like a personal interview. Also, if you resume has some experience, they will ask on that too. The questions were based on Networking and Linux.