Tata Consultancy Services Developer interview questions

I entered the panel, there were two interviewers. One of them was supposed to take TR and other to take MR, but honestly both of them asked me technical questions simultaneously, so I did not know who was who. The first question I was asked was, 'Tell me about yourself' . I proceeded to answer. I knew this was an obvious question in any interview of I cam prepared beforehand of what I would say. So I started to answer telling my name, my education, background, skills, projects. Just when I was talking of my skills , I mentioned github. Soon after hearing that, they picked it and started to ask question on github. And more than half of the interview was about github itself