GSAT (Global Samsung Aptitude Test)
Techincal Test
Interview (Techincal)
Interview (HR)
70 appeared for written test and finally 10 got selected

Written test had aptitude questions related to graph interpretation and reasoning
Technical test was focused on C, Operating system and Data structures
Interview covered subjects like C,Data Structures,Networking,Operating System

Basic concepts of Operating system,networking,C and data structures were asked in technical round
HR consisted usual questions like what makes you different then others,strength and weakness etc.
Technical was for around 20-25 minutes
Hr for about 15-20 minutes

Well take interviews normally and don't fear it.
Go for detailed studies of atleast 2-3 subjects that you feel comfortable with.
Be confident in interview and always be yourself and don't try to act smart.

Good preparation ,confidence and sincerity during interview...