Number of interviews - 6 which includes 4 technical rounds and programming test. Technical interviews will touch from Database concepts to User Interface. Asked me about, WPF, WCF in detail, SQL Server, MYSQL, Threading concepts, Open Source Technologies for continuous integration, deployment strategies, Design Patterns Dependency Injection, Abstract Factory and Singleton. Programming test will itself take your complete day, if correct version of program is to be sent. If you have time, then you can think on it.