I interviewed for TCS in my college campus placements. There was a preliminary aptitude and email writing round. The aptitude part was mostly from the previous year’s questions. Email writing was pretty easy. For the people who qualified that, it was followed by a three-fold interview process involving 2 technical rounds and one HR round which was more of a formality as the main selection happened during the technical rounds.

Easy process focusing on Projects in detail , Coding , Sql queries , OOPs and some managerial questions followed by HR interview. They mostly focus on your confidence and calmness rather than only knowledge. It's better to have good communication and quick thinking in the interview.