Accubits Technologies Nodejs Developer interview questions

The first part of the interview process was a technical test of about 5 hours, which I've submitted via GitHub. After completing the initial stage they called me for a second technical round, which was really out of the topic and all he asked was basic questions, nothing related to working field to project scope. After that round HR didn't call me all they sent was a mail saying that we are unable to make you an offer, they never said any feedbacks or what went wrong nothing in the mail, It was really shocking experience as they have wasted more than 6 hours of my time and didn't even gave a proper response. Please don't waste your time by applying to this company, it was the worst interview I've attended.