Like different terms in the Navier-Stokes equation, physics of the boundary layer, the process of fluent (CFD software), and the importance of meshing and basic concept of modes of heat transfer. He asked about my interesting subject and what made me like the domain of my interest. He asked about the relevance of my domain of interest with the project what I did and also about the contribution in the project. About my family, the proudest moment in life and about my strength and weakness. It has gone for 30min.