Stage I :
Candidates will be shortlisted based on CAT score and academic performance provided they achieve the following minimum section-wise and overall CAT 2012 percentile scores:

Candidates in each category securing the above percentile in CAT 2012 will only be considered for calculation of their composite score in Stage II. However, please note that the actual cut-off for generation of short list for each category for PI stage will depend on composite score calculated in Stage II, and may be much higher than the above mentioned minimum cut-offs.

Stage II :
Method of allotting points for Class X and Class XII percentages of marks based on aggregate scores is as follows:

Components and corresponding weights assigned for generating category-wise short-lists for the PI stage:

A = Candidate’s total CAT 2012 score
B = Maximum CAT 2012 Score
C = Points awarded for Class X marks
D = Points awarded for Class XII marks

Candidates based on their performance in CAT 2012 scores, Class X and XII marks and gender diversity criteria will be called for the PI stage of selection process which also has a written component. Cut-offs for the PI stage of selection category-wise will depend upon the composite score based on components in above table and intake for the batch. The shortlisting will be based on merit in each category, minimum qualification on the above mentioned criteria would not automatically shortlist the candidate for the next level.

PI Stage:

Criteria and their weights used for final selection for PGDM and PGDCM for the batch 2013-15

1. CAT Score : 35%
2. Writing Ability Test (WAT) : 10%
3. Personal Interview: 44%
4. PG or other qualifications like CA,CS : 3%
5. Work Experience : 8% 

Further details about how points are allotted for PI, points for work-ex & reservations are available here. 
Selection criteria for year 2012-14 (CAT-2011)