You need to choose two language and there will be algorithmic question in each of the two languages which are pretty easy and straight forward. Apart from this there will lot of question theoretical, where they test how well you know your chosen language. Conceptual questions along with expected output for the block of code given. There is also a maths question where couple of problems on probability are asked. Telephonic round also similar, they ask conceptual and input output questions in your chosen languages. Algorithmic questions are very straight forward. 4-5 questions on probability and stats also. Few questions on threads, mutex etc and in the last they will ask a design question. The whole process is very annoying.