Don't waste your time on this company unless you are jobless!!! I had six rounds.

1. Aptitude - if you are good you can crack 6-7.
2. Programming - 3 programs Average difficulty programs.
3. Technical one - data structures and algorithms.
4. Puzzles and programming.
5. Managerial round - no technical more behavioral round.I cleared all the rounds with ease and was confident that I will get an offer. They said they will call back later which they never did. Later came to know that they are looking for someone who is willing to take up the job for lesser salary.I was pissed off why should someone call you for an interview after asking for your expected CTC and then reject you on CTC grounds.

How do you convert a BST into a doubly linked list