Tech Mahindra interview questions

I was called for a Face 2 face interview on 31st January at EC bangalore for UI developer or AngularJS developer . The HR connected me to some one on the phone for interview. I went for an UI developer interview and they started asking do you know Java/ Struts / Hibernate. The interviewer told me that I was good at what I do but you dont match their requirement and finished the call in 2 mins. I told the HR that they had called me for the wrong interview without having verified my resume properly. She apologized and told to wait for 30 mins and connected me on the phone with one more guy would take interview for AngularJS. This interviewer asks the same question do you know Java/ Struts / Hibernate. I dont understand the logic behind the interviewers / HR as to why they ask for something which I havent even mentioned in my resume. Later on after I told i was here to give javascript/ AngularJS interview. He started asking silly questions like how to get value from text box in javascript in a bid to cover up either goof up of calling the wrong candidate for the interview. Just wanted to let people know that how unprofessional the whole interview took place to cover up their wrong doing.They wasted a days time of mine. I choose give interview at Tech mahindra over other company which had scheduled interview on the same day. They thoroughly disappointed me and wasted my precious time and other opportunity i could have bagged.