Very good and straight forward process. Lateral hiring is focussed on technical details and previous employment. They delve deep into what we have done in the past and how we could apply that to the role under discussion. Sensible technical tests to check ability and then followed by questions on how comfortable we are working in a team

Prepare for TCS interview with basic machine learning questions covering supervised learning, regression, classification, clustering, model evaluation, overfitting, and be ready to explain previous projects, datasets and outcomes clearly briefly