Tata Group Software Developer interview questions

techinal round went very good but i was disqualified in the final hr round and i don't even know why. later i found that hr and asked him what went wrong to improve myself and he said that he didn't like me, i don't understand his reason because i applied for a job not to get into a friendship with him.

First an exam with 2coding questions and one SQL coding question and around 5mcqs Total three rounds First round-Technical round -1hr In technical round they asked questions about my projects and asked to show execution of any one of my projects.