Round 1: 1. Add the diagonal(both) elements of a matrix and return. 2. About oops of which virtual function, pure virtual function. Round 2 is with manager where he asked about projects in deep like what are the challenges occured while making projects. And some behaviourial questions like where do you see yourself in next 5 years, what are your hobbies, If you get inern what are the tech you are going to work with.