Sorry I AM POSTING THIS HERE! THIS IS NOT THE ANSWER TO THIS QUESTION!! I had similar experience.. They are very unprofessional and it seems that they are not interested in hiring anyone instead they want candidates to build small modules of their own product and choose the one which looks best. They have done the same thing with me as well. They will never reply to your emails once you submit the code. My advice to everyone out there.. Don't go for this company. You will only end up wasting your time.