First online test through hackerrank.com. There were some 8-10 multiple questions and 12-10 programing questions and expected to be done in 2hrs. Questions were easy like- reversing linked list, recursive routine for multiplying 2 numbers etc. Then, I was called for F2F interview rounds. First round was taken by engineering manager. He started with OOPS conceptual questions and then asked a programming question i.e. printing a BST in zigzag manner. We can do it using two stack. Then I was taken to another person. He was curious about my work profile. Tried to ask few questions from profile. He also asked me to write strtok(). He asked to swap bytes of integer value. Then asked about hash tables etc.