In the final year of my college, we have a job placement season which starts in january. A couple of companies visit the college, each having its own aptitude tests and interviews. TCS was one of the companies that visited my college. The whole selection process consists of a Computerised aptitude test. Upon clearing which you are called for a series of interviews. To be eligible for the test, you need to have atleast an overall percentage of 65 with all subjects cleared before the date of the test. Interview consists of a Technical interview, a group discussion and a final interview with the HR. You need to clear each one to move on to the next. Level of aptitude test is above average. and for the interview you should be clear and strong in the basics of your subject. Rest just have confidence and smile.