There are lot of answers for this questions which I believe hide the reality. I am a student/alum of ISB (being anonymous for answering) and want to give you an actual view. ISB’s fee is 30 lacs presently and it’s batch size is around 9oo (870 precisely for Class of 2018), the institute is unable to serve the huge batch size and there has been a huge dip in the quality of students and placements.
ISB is known for consulting jobs and the big 3 firms MBB do come here to recruit but numbers are same as they do in IIM A/B/C. McKinsey’s hiring is higher but then Bain and BCG higher in comparatively lower numbers. Finance jobs are literally absent from the campus. So the so called “Elite” MBA jobs are scarce in numbers and do not look to improve in future as well. Shortlisting for these jobs is highly grade driven and it would not take more than a bad grade to make you ineligible for the “Elite” jobs.