How much salary do the last 50 MBA students get at final placements at B Schools like IIM Indore, IIFT Delhi, MDI Gurgaon, SIBM Pune, etc.?

Colleges invite companies for placements on the basis of the preference list created by the students themselves. This means that the most preferred companies visit in the initial days while the least preferred companies visit towards the end. This eventually means that the last of the batch gets placed by mediocre companies.

Now here is a fact, sometimes the companies visiting at the end in order to get higher preference and attract maximum students, offer high packages that are at par with the preferred companies. 

My uncle was a placement coordinator at IIFT a few years ago and gave me an insight into the placement scenario of such B Schools. Numerically speaking if the median salary of a particular B School is X, then the packages offered to the last 59 students would be around 0.6X-0.7X. 

The approximate salary offered to the last 50 candidates of the B Schools you mentioned is around 15-17 LPA.

Kindly note that these figures are based solely on guesses and anecdotes from my juniors, and are just meant to give an idea of the salary.