Intellect Design Arena Data Scientist interview questions

This company came for our campus. First they shortlisted us based on hacker rank test and after that we had one virtual interview and they announced the result after one week

So I won Intellect AI Hackathone so I got interview chance. So first of all he ask basic question like tell me about yourself. Interviewer doesn't have proper knowledge of NLP. let me tell you why? he ask me to create custom toknizer so I created one than he said you are wrong don't use split use library so I use nltk tokenizer in that dot didn't split than I fix this but he said you have to use Part-of-speech. So he didn't even knowledge that what is Part-of-speech? I also cross how Part-of-speech in that he said figure out yourself. After 2 week they didn't give any response So I ask for follow back HR said "You didn't have experience, So you can't solve that problem. That's why they rejected you" I don't know if they din't want to recruiter why they taking hackthon and take interviews.