Sourabh, Articleship in CA Intermediate is not considered as work experience because that is a mandatory part of studying CA. So, for now we have to exclude CA qualification because you need to complete CA if you want to show CA as your educational qualification. And CA final year Candidates are not eligible for CAT. They need to complete the course to be eligible for CAT if they want to claim CA as their highest qualification. IIM Ahmedabad has the following rating scale. This is the same across all Categories:

10th Rating:

Percent score    Rating Score

<= 55                             1

> 55 and <= 60             2

> 60 and <= 70             3

> 70 and <= 80             5

> 80 and <= 90            8

> 90                             10

The same rating score is used for 12th Science /Commerce Streams. For Arts/Humanities:

Percent score           Rating Score

<= 45                               1

> 45 and <= 50               2

> 50 and <= 60               3

> 60 and <= 70                5

> 70 and <= 85                8

> 85                                10

As you did B.Com.in your Graduation, the minimum cut off for General Category is 77%. From each Academic sectors top 5% from each stream and each Category will be short listed. It might look like:

Category                                     Upper Limit

General                                                  100

NC-OBC-cum-transgender                   57

SC                                                             32

ST                                                             16

PwD                                                           6

After shortlisting the Candidates, the selected Candidates will have to go through WAT and PI rounds. Selection at this stage will strictly be based on the shortlisting of the candidates done separately for each Category ) on the basis of their Final Composite Score. The numbers selected in different reservation categories will be in proportions mandated by law.

Personal Interview Multiplication Factor (PIF) = 0.50

AWT Multiplication Factor (AWTF) = 0.10

CAT Score Multiplication Factor for Final Composite Score (CATF_FCS) = 0.25

Application Rating Multiplication Factor for Final Composite Score (ARF_FCS) = 0.15

After the AWT & PI round, admission offers are made by IIMA to successful candidates. The final selection is based on a diverse set of attributes which includes performance in CAT, performance in AWT & PI, academic, co-curricular and extra-curricular achievements, work experience, etc.

Now if you look at the no.of Candidates who are selected for General Category it is only 100. To beat the rest 99 for a seat in an IIM, you need have an impressive profile. As already discussed you have your CA in your favour. So complete CA Finals as well and meanwhile put up some work experience. That is the best shot at getting into an IIM.