Thermax interview questions

Very unprofessional and tedious for a summer internship, HR ghosted me and cannot even spell basic English words. Literally just letting anyone screen for candidates these days. Multiple emails sent, no clarity on anything, and had to beg for the few responses I did get. All this for an unpaid internship. No respect for candidate's time or their own. Reject upfront if needed.

First HR round and then two technical rounds. HR round was for intro basic Technical rounds were the main decision maker . It was technical and so be prepared about the process in which you are giving the interview