Tech Mahindra interview questions

Consultancy called claiming they are HR from Tech Mahindra and then scheduled interviews. Two rounds of Technical Interviews for 1 HR and 30 minutes cleared. In 2nd round interviewer told wait to get good news. Then HR round happened after 10 days of waiting. After HR round asked to go for background verification process. Allowed them to do so. After clearing Digital Background Verification then they started playing every day calling me and telling will release offer letter. Suddenly they asked another round of discussion where as HR told its not an interview as it is to brief you about the project, roles and responsibilities but surprisingly it was completely technical round with all out dated stack. The interviewer was very rude and not ready to allow to think on the scenario and respond with answer. He started the round saying it’s going to be Rapid Fire round , who does this in real interviews, it’s not any Big Boss show or Kaun Banega Karodpati show. They only good at ghosting and finally won’t release any offer. HRs lies to extreme level. Never seen such unprofessional behaviour where they tell we are releasing offer letter and have guts to take advantage to conduct another round. Stay away from such unprofessional recruiters.