3 F2F rounds of interviews. All questions related to data structures and algorithms. Spiral traversal of a matrix. Repeated characters in a string etc. Algorithms questions on arrays. Coins denomination problem OpenGL basic concepts. Overall experience was positive. Good attitude of people. Prepare the common alogrithms and data structures questions. Refer Data Structures and Algorithms Made Easy By Narasimha karumanchi. A very good book to prepare for DS and Algo questions.