When you approach this issue analytically, it becomes surprisingly simple to comprehend. Here are a few of the best colleges along with an estimated number of seats overall.
There are more than 2400 seats available if you only take the aforementioned colleges into account, and most students who are converting to those institutions will likely choose them over Kozhikode or Indore. The majority of those on the first list who convert also receive calls from these colleges, which convert them.
As a result, there is a significant overlap of candidates, which causes Indore and Kozikode to move up the waitlist quickly. Please keep in mind that the number of buffer calls made also affects how far along the waitlist a person is. Maybe the high waitlist movement is being caused by I and K making fewer buffer calls.
There are actually huge possibilities that the candidates who get shortlisted for the interviews at IIM Kozhikode and IIM Indore, may also have been shortlisted for the interviews at IIM A, IIM B, IIM C, or IIM L.
It is important to know that there is huge inclusivity in the selection process among all of the IIMs. For instance, if you got selected in IIM A, then you will also get selected in other IIMs such as IIMK or IIM L, but you will choose to opt for IIM A. Thus, the shortlist will move on one by one in both IIM K and IIM I.
There might be students who would convert to either IIM A, IIM B, IIM C, or IIM L and thus forfeit their seats in IIM Kozhikode or IIM Indore. There are top colleges and students usually prefer those. There is a huge overlapping of candidates.