TCS conducts 4 rounds to select freshers as Assistant System Engineer in their organisation. Written Round Technical Round Managerial Round HR Round Written Round : The Written round consists of four sections and the total time allotted is 90 minutes. The four sections include: Quatitative Aptitude Test: The first is the Quantitative Aptitude test where the numerical and the reasoning ability sections are tested. There are 20 questions that need to be attempted in 40 minutes. There are 2-star questions which have more weight than normal questions and are a bit tricky. There is negative marking of 1/3rd for the questions other than the star. Important topics include Number system, Equations, Ratio and Proportion, Percentages, Profit and Loss, Time and Work, Time speed Distance, Areas and Mensuration, Averages, Permutations and Combinations, Probability, Plane geometry, Seating Arrangements, Sets, Progressions, Functions, Series, Coding, Truth and Lie based puzzles. Programming Language Test: