1 Round is all about you recent project role and technology used.
2. Round they give you laptop and give a sample problem statement and you have to code
3. Round technical interview , interviewer check in dept knowledge of everything you have mentioned in you resume.
Question
1. Mostly on web api, and wcf
2. Design Patterns
3. they give you real time problem and ask for solution
4. solution designing .
5. Oops deep concept checking
6. singleton, abstract,interface,threading,async programming, parallel programming