there he asked me some simple questions and checked my personality and iq

The initial screening was done based on a computer based test: the sections included: quantitative, verbal and analytical thinking quantitative had comparison, probability & stats, series, areas n volumes, geometry n trigonometry questions with a number of reasoning ones verbal section had reading comprehensions, antonyms, synonyms, sentence completions etc Analytical section had math puzzles - which were quite tough 1. Asked in detail about undergrad projects 2. Asked me to explain about my technical papers 3. Why I did not score well in a particular subject 4. Favorite courses and least liked ones 5. Asked about co curricular activities 6. why I wanted to join TCS