I applied through a recruiter. The process took 3 days. I interviewed at VdoCipher Media Solutions (New Delhi) in Jun 2016
Interview
Aptitude: Good level
Mathematical modelling & statistics: good level
Communication skills: Difficult level
IQ tests
situational reactions
(They re from IIT Delhi, so they ask fairly good questions to judge you)
Overall, it was a good experience. Do ask a question in the last. Be confident, you will make through it.
Interview questions [1]
Question 1
They were asking puzzles, marketing related questions. i don't remember much but I remember the questions tested your skills and experiences.