Selection Policy of IIMs: Favouring young batches subliminally or making their life easier?

The selection policy of most IIMs have now included 10th, 12th and graduation percentages in their selection policies for admissions into their PGP courses. While this may make the life of IIM people much easier as they dont have to resolve tie …

The selection policy of most IIMs have now included 10th, 12th and graduation percentages in their selection policies for admissions into their PGP courses.

While this may make the life of IIM people much easier as they dont have to resolve tie breaking candidates selection possibilities often, it is wrecking havoc of test takers biting their nails nervously hoping that they would get into these prestigious colleges.

But an unprecedented side effect of this phenomenon(usage of 10th, 12th marks) on the demographics of the batch in IIMs.
Consider this: The colleges multiply the 10th, 12th, grad scores or use some statistical method related to these scores and add it to the CAT scores with proper weightages. So for example, a 100 percentile fellow will not be automatically favoured by these institutes but will have to had proven his mettle in 10th, 12th as well as graduation.
Now, the case is, recent batches (say people who have given their 10th, 12th after 2005) have been consistently scoring above 90% or more in their boards. The older people (people who gave boards before 2005) have not been so successful in their boards with the topper scoring a max of 95% or so (in non CBSE boards).
The selection policy of the IIMs has these people at the most disadvantage as there scores in 10th, 12th and GRAD are limited not by talent but by leniency in checking not shown to them!
Though these people will be fit for Executives programme and will benefit most in a years course, not everyone has the luxury of a company sponsored Exe Programme.

In foreign countries, MBA is preferred by people to be done after some work experience and the people preferred by colleges also need to be experienced (hence the 2 years minimum work ex requirement)

The question is, whether the IIMs are subliminally advocating a younger batch or they are at a loss of tie breaking methods in selecting test takers?

PUYS decide....

Note: I am one of the sufferer of the policy