Educational Initiatives BDA- Business Development Associate interview questions

Interview was on google meet for 20 minutes.As soon he came he asked to tell me about yourself,as soon as i started he interupted in betweeen and asked me how old are you,i was in my 30 "s.He then started pestering me about my age and how he passed his 10 th standard when he was 15 years old and i cleared my 10 th when i was more than 15 years old.I have total experience of 7 years ,for which he said you have started your career at 28 years of age which is too late,i told him after my b.com i was planning to to mba but my father got heart attack so we had finanicial problem so it took time to do mba and i took education loan.After this he said do you have any proof that you are not that old .Lastly he said why you are not working for 4 months ,i told him i am looking for work from home as my parents are old and i am the sole earner and i have to take responibility for my parents ,due to that i a m looking for WFH job,for which he said "job toh 15 din me lag jaati hai."All this happenend within 5 minutes.He never asked about my experience ,no questions.This is my horrible experience and i will never forget that he keep insulted me about age and my 4 months job gap.He ended the Google meet before i could say anything.He had my CV ,if age and 4 months gap was the problem ,why did my CV got shortlisted.