24G Software Development Intern interview questions

Applied through 24G website. Half hour interview with 2 software developers. It was just a discussion about my experience and projects. After that interview, final step was to work on project. I worked on the project given by them and submitted it but did not hear back. I took a follow up with HR "thrice" but not even a single reply from HR. I have worked on the project for 2 weeks apart from my coursework and did not receive a feedback. That is the worst part of my interview process. And finally, I did not even receive reply/update on my application/interview process.