Post CAT 2012 when the result will be announced on coming January 9,2013 shortlisted aspirants will have go through WAT (written Ability Test).
WAT is the test to judge your skills for expression of thoughts on some assigned topic which you will have to write in a stipulated time frame of 15 minutes.
WAT looks akin to essay but with thin line of demarcation of creative writing on your expressions.
Your communication skills will be at radar of selection panel so be lucid in your WAT , that’s the best creativity.
Chances are high that you may be asked questions in PI from your WAT also.
No harm to practice for variety of WAT Topics to be successful.