I applied through college or university. The process took 2 days. I interviewed at Cognizant (Rānchī) in Aug 2011
Interview
First, they conduct a PPT [Pre-Placement Talk] round with the students and discuss about the Company, Compensation, Growth and all.
Second, there will be a Aptitude test which comprises of 60 MCQs for 60 minutes. Questions include English, Quanti and Reasoning
Third, there will be a Personal + Technical joint interview.