1st round will be technical itself where they will ask questions for formality .Even if your answered all question well, they will reject you without mentioning any reason in the feedback. PFQ below which was asked

Interview Experience Overview: I recently went through a three-round interview process, which included: Technical Round – A detailed 45-minute technical discussion, which I cleared successfully. Technical + Management Round – Unfortunately, this round was disappointing. Despite having a fair conversation and answering the questions well, my candidature was dropped after just 2-3 questions by an interviewer with 15 years of experience, who lacked professionalism. HR Round – Did not reach this stage due to the unfair rejection in Round 2. Final Thoughts: Even if you clear the first technical round, the selection process in the second round seems arbitrary, making it feel like a waste of time. If decisions are made based on just a couple of questions, the purpose of having a detailed technical round beforehand becomes questionable. I would not recommend interviewing with this company.