I applied through college or university. I interviewed at Care India (Bihār Sharīf)
Interview
It was a campus placement. In person interview with two interviewers. Then there was a phone interview with a senior person. They asked me if I knew Hindi and asked to speak in Hindi. Asked me a few statistics questions. It was like a casual discussion, no pressure or seriousness.
Interview questions [1]
Question 1
What is the difference between random sampling and stratified sampling?