QI-CAP interview questions

OA - 3 Design question and 2 Dsa questions, solved 1 on each , selected for interview Round 1 - adhoc process , questions about current work, resume projects, some questions about cs fundamentals,

Their recruitement process is messed up. I applied there 2-3 times. I applied a year ago and at that time they did not give test or interview as they told my resume is not shortlisted. After a year, I applied their recently, they told resume is shortlised and sent hackerrank test and I solved all 3 questions. HR ghosted me then and didn't receive the call. Suddenly after 15 days got a mail that I have been rejected without any feedback or reason. Even worse things have happened with my friend.