VotaryTech Software Developer interview questions

I got a Call from HR, First had a telephonic round which I cleared. As this is Outsourcing company for Qualcomm. Next roud was scheduled with QC only. But those people reschedule twice. After that they asked me to come to Hyderabad for interview. Their also they rescheduled it, and finally after waiting for whole day they told me that they were looking for some other requirement. Wasted my whole day.