Appknox Software Engineer - FrontEnd interview questions

There are total of 3 rounds . Online assessment, a take-home project, and a technical round. It was quite satisfactorily, The last question I did 90% correct. However, I didn't receiving any feedback even after continuously follow-ups HR didn't bother to pickup the call for last 3-4 days . It's was a waste of time . When an applicant is taking out time completing the project after working his shift and this is how the HR value their time without picking up the call. Never seen such an unethical behaviour by any HR. Overall, I was very disappointed with the entire process. More over a complete waste of my time.