Capgemini Senior Manager interview questions

I was approached by HR, called twice for face to face interview on Monday mornings. Both the rounds went well.I was complimented for my experience and expertise. Called Called 3 to 4 times over phone for discussion. But didn't knew what went wrong, they didn't give reason for not hiring. HR didn't even bother to reply to my email. I am shocked if they behave this way with senior members this way, what would be their approach at entry level?