Smooth, focused mainly on trees, arrays, dynamic programming and popular backtracking problems that can be practiced through GEEKS FOR GEEKS and other sites. I would recommend not to go after competitive programming for this company. Rather focus on diversity and basics.
I applied through college or university. The process took 1 day. I interviewed at Publicis Sapient in Oct 2010
Interview
I did an interview through campus career services. There was an information session the day before the interview. The interview itself was 1 on 1, and consisted mostly of walking through my resume and doing personality questions. The interviewer was nice. I tried to follow up, but received no replies. I assume my application is no longer being considered.