CBT Infotech Pvt. Software Developer interview questions

The interview process was normal. I was sitting in the waiting room. I was there by 10am and the interview started by 10:30am. So i was Ok with it. They asked me about the previous experience and the projects I worked on. The difficulties faced by me while coding and how did I handled those situations. And then they started with technical round. The interview duration was approx 15-20min.