Cognizant Process Executive interview questions

My interview was scheduled at 2 pm. The first round started at 6 pm. There are only few people to handle the crowd of almost 500 candidates. There are 3 rounds 1.Group Discussion 2. Face to face interview and 3.HR round. My topic for GD was "eve teasing". There were 10 people in group and people were telling their views randomly. In f2f interview, there were some common questions like the background, easy technical questions.

Hiring through an agency who did the first interview via phone. Two more Skype interviews with the project manager and an HR. All three mentioned benefits which made me relocating from Portugal to Ireland, but were not given.