I applied through college or university. The process took 2 days. I interviewed at dunnhumby (Calcutta) in Nov 2015
Interview
We were asked to do a case study round once we qualified from the aptitude test. It was a case stdy that required data interpretation and required big calculations in a small time.
Interview questions [1]
Question 1
One of the biggest problems was guesstimating the no. of certain landmarks in a city