How was the IIM Rohtak interview?

My friend once shared his interview experience at IIM Rohtak. He was a General Engineer Male with Acads:9.8/94.4/8.55 Cat: 94.4/71.55/98.5 Overall:96.8 profile. 

It was an online interview and the panel comprised a male and a female who made it a very comfortable experience. Before the interview began, he was asked to display the CAT Score card and graduation certificate.

The strange part of the interview was that they did not ask any typical HR questions like an introduction, questions around why MBA, strengths or weaknesses. I have summarized the rest of the interview in points below

• He was asked to write on "Technologies impact on the job market" for which he was given 30 seconds to prepare.
• Owing to his Electrical Engineering background, he was asked about AC to DC rectifiers and digital devices.
• Keeping his Data Science work experience in mind he was inquired about his job role and questions about Supervised and unsupervised learning. They also asked questions about primary and secondary markets
• He was asked about his hobbies
• He was from Andhra Pradesh and they asked him about its current government scenario.

My friend was able to answer almost all the questions confidently and the interview ended within 10-12 minutes.