To get recruited in TCS a candidate first has to clear the online assessment round. Once a candidate has cleared round 1, the next step will be the interviews. There are two interview rounds that are conducted in TCS, one Technical Round and one HR/MR round

Technical interview by phone, they steal my ideas in given question, I teach them how to solve things they never did before, but at 2nd Rounds rejected by manger. True reason is I'm not a 'Tamil Indian', I know that. They like to hire their own Indian people, use others for interview to learn other's ideas and take credit away!