Round: Test Experience: Unix questions...about the file systems and data structures.
Round: Test Experience: A round following the written test with questions mostly from your resume regarding your projects and some network related questions. They were checking how well you can converse in English.
Round: Technical Interview Experience: This was a purely technical one and was through Skype..almost 2 weeks after the second round. Very difficult one. About 5 interviewers were there and each one would concentrate on a topic.
Round: HR Interview Experience: projects, compilers,data structures.(all basics...but they will lead u to research oriented questions following your answer...which will be very difficult to answer.)Simply u wont even know how the interview gets difficult...it was different from other company interviews. Cmemory leak, dangling pointer, appl oriented c questions. About your achievements and questions about the workshops you attended.