hello sampat!!
with 86% marks in 12th cbse and 80.38percentile her jee mains you are eligible for josaa counselling.however you are not eligible for admission into iit and jee advanced.

you are eligible for jossa counselling and can apply for the participating colleges.

please see the link below for more details regarding josaa counselling:

https://engineering.careers360.com/articles/josaa

please see the below link to check which colleges you would be getting for your percentile :

https://engineering.careers360.com/jee-main-college-predictor?utm_source=C360&utm_medium=qna&utm_campaign=jee-main-college-predictor 

all the best

thank you