I recently came across this news article in Financial Express which mentions of interview lasting for 3 to 5 minutes to judge whether a GM in public sector bank can be elevated to the post of ED. What I find is surprising is that how can an interview board which consists of distinguished people judge a person in 5 mins for such a senior post.
The only other idea which comes to mind that interview might just be a formality and whether to promote a person or not being decided by political masters on the basis of some other considerations