Hello

There is no leverage in the sectional cutoff for admission to IIMs. 
You have a good academic profile and based on your score CAT percentile, you can try for

Indian Institute of Forest Management, Bhopal
IBS Business School, Hyderabad
National Institute of Technology, Warangal
BIMTECH, Greater Noida
PSG Institute of Management, Coimbatore

The final selection procedure also depends on your performance in the PI/GD.

Good Luck!