Yahoo Principal Software Engineer interview questions

I was told I will be having a screening round and hr told the discussion to happen in 3 days...Waited nothing happened.. After 15 days hr asked for a quick screening round which is scheduled around 10:30 PM , ( The employee is an Indian working from US) Asked about the project details, Explained them in detail. Not a single technical question. And then again the asked for another discussion as there was a power cut after 28th min ( Interview was scheduled for 30 min). Another round of 45 min of discussion, Again no technical question , Discussion was around project and technologies used etc.etc.. Not sure what she was looking or trying to extract. Thought is waste of time