Tech Mahindra Junior Java Developer interview questions

There are 3 rounds of interview First one i.e Written test, I got shortlisted and then second round is technical round..The one who interviewed me came into the room and said that i dont have enough time and i will finish it off within 5 minutes and just asked 3 questions and i answered 2 out of 3. How can a person judge a candidate's potential or capability with 3 questions.. They people didnt inform me about the result..I really felt disappointed..Can people in an mnc behaves like this.. I just want to remind you that everyone will come to interview with a lot of hopes.. People had a belief on Techm please dont spoil it..