Pyramid Technology Solutions Full Stack Developer interview questions

I had attend the interview around two weeks back. 1st round was telephonic where the interviewer asked questions on DS and Algo. Ex: Permutations of String , reverse a linked list and one more related to array . I have answered them well , they called me for technical discussion after 10 days , I went there and waited for around 20 mins there was no one on the front office so I had just checked with some random employee of that company he said give your resume and I will give to the respective hr. After 10 mins a guy comes and starts asking questions on js , I had told him that i didn't work on js but i know few concepts for which he kept on asking js questions . I was applying for full stack but there was no discussion of backend questions at all . He said he is done after 45 mins and hr will update you with feedback but the twist is HR never came back to me and said something about this. It doesn't matter if I am selected or not at least be clear on your side