Dear Aspirant,

If you are already allotted a seat in IIIT Kancheepuram then don't worry. CSAB conducts its special counselling to provide admissions to the students on the remaining seats after JOSAA counselling. Generally students who don't get a seat in JOSAA, or who, which have forgotten to register during JOSAA or the students who want to upgrade their seat, registers for CSAB counselling.

So don't worry if you don't get any seat in CSAB. Then whatever your seat is now remains the same.  As you have already a seat, so by this counselling the maximum possibility for you is that might your branch gets upgraded.

Hope this helps.