no written test--shortlisting is based on CGPA.

Basics of civil engineering like
1) prerequisites for building a structure.
2) characteristics and wide uses of fly ash.
3) projects done earlier if any
4) undergoing b-tech project.

1) about my height ( 6'2'') --may be i was tall enough to be asked.
2) about your co-curricular activities and hobbies.

1) Don't Panic and be COOL.
2) Answer boldly with confidence and DO NOT BLUFF OR COVER YOUR ANSWERS.
3) try to accept your mistakes if made any.
4) finally, ALL THE BEST-----if not selected for the job,remember there is a much better company awaiting you.
regards...

It was a 15 minute cumulative interview of technical and HR in a pleasant environment.