Tech Mahindra ETL Testing interview questions

There is nothing to tell about the process , because there was nothing as an interview. All candidates were told to report at 10 in the morning. There were 30 candidates for ETL. And until 1 in the afternoon, not even a single candidate was called . The HR who was responsible for the interview was totally unprofessional. And when I was called inside at 3.30 finally , the interview was a namesake process. There was 2 interviewers who were not from ETL domain and were asking googled questions. In the middle one of the interview, one of the interviewer got a call, on the way out, they communicated among themselves to ask some random questions in the native language . And finally they rejected me at 4 pm saying that my profile didn't match their requirement.