Well, there wasn't much of a process. One HR person called me to describe the job requirements and responsibilities. After that, he send me a case study to solve and send the solutions within next two days. However, the HR did not get back to me for next 2 weeks so I wrote back to him asking for giving rejection/ further rounds confirmation if they wanted me to continue in the process. I was told that my solutions are being verified by some "expert" and will take some time. Yet to hear from the HR guy after 1 month.