There are very less chance of getting karnataka architect college.

As per your percentile and previous year cutoff, the colleges you get in b.arch are:-

Gateway college of architecture and design,Sonepat

SUPVA Rohtak

Ganga institute of architecture and town planning,Delhi

To know more about your chances of getting other colleges check out the college predictor link below:

https://engineering.careers360.com/jee-main-architecture-college-predictor