Tanzanite Infotech interview questions

Irrespective of your experience, First round is General Aptitude round. Sencond would be technical round followed up by HR round. Had been called for second round. It was technical round. Focused on your knowledge related to APIs. Like which method belongs to UITableViewDelegate and which to UITableViewDataSource. Lasted for around an hour. I think i answered all the questions and that too correctly and confidently. But there was no call after that. Even i mailed the HR two times, to know the status for my candidature, but no response. Overall, i am disappointed with their interview process and their HR ethics.