I applied for Java Senior Software Developer position.
First HR manager checked my desired salary, notice period and other details like work status in Canada. Then book the interview time in the same time. There were three interviewers who asked me questions. First of all, they really struggled to talk in English and sometimes they don't know how to communicate their questions. I answered all the questions properly as I know how TCS interview questions would be. The questions are average and any 3 year Java candidate could answer those questions, especially candidates like me who worked in India.
The interview went around 40-60 mins and one interviewer tipped me that I don't have web based experience (I worked only on web applications for 6yrs). Still, they mentioned that they would call me back, but never did.
I would say TCS-Canada interviews for IT positions are nothing but a fake to fool the Canadian LMO policies. In order to bring Indian workers to Canada, they have to show that TCS couldn't find local resources in Canada.
Let's assume if TCS hired you for a position and the payment is 60k, then they have to keep you forever by paying 60k and benefits. But on the other hand, TCS can bring Indian candidates by paying them same 60k. The real twist is, after 2 years they will send Indian candidates back to India. For TCS, paying 60k for 2 years is easy comparing life long payment to local (Canadian) candidates.
Don't waste your time with TCS. It's my personal option and it may vary for others.