Hello Shreyasi, as you are saying that you are permanent residence of Bihar then I'm sorry to say but you are not eligible for the KCET 2019 exam. But yes if you want to take admission in college in Karnataka then you can give the exam of ComedK.

I'm attaching the link of eligibility criteria of KCET please have a look into it.

https://www.google.co.in/amp/s/engineering.careers360.com/articles/kcet-eligibility-criteria/amp

Good luck!!

Hope it helps:)