Hello aspirant, admission in IISc Bangalore is based on JEE advanced rank and does not depend on JEE mains percentile. For admission  in IISc Bangalore you need a very good rank in JEE advanced. The cut off in 2020 for aerospace engineering was under 250 All India Rank in JEE Advance. If you study very hard for JEE advance exam and get a very good rank then only it is possible. But after getting 82 percentile in JEE mains it is difficult to get under 250 rank in JEE advance but not impossible .

However there are other private and state engineering colleges in which you can you can get a seat. To find the colleges based on your JEE percentile visit -

JEE Main College Predictor 2021 : Predict Colleges based on your JEE Main Rank (careers360.com)

BEST OF LUCK!!

Hello aspirant,

I am sorry to inform you that to get admission in iisc bangalore you need to get around 99.5 percentile to 100 percentile. So according to this percentile you would be requiring around 250 marks in jee mains for general category students.
You can predict your college using the below link
https://engineering.careers360.com/jee-main-college-predictor?ici=cp-listing_engineering&icn=JEE-Main-&-Advanced-College-Predictor=

Don't worry there are a lot of private colleges which has a better placement and rank than top notch colleges like nit's. You can try for them also.
So good luck

IISc Bangalore

Admissions Courses & Fees Placements Reviews

Shortlist

Brochure

Joint Entrance Examination (Main)

Answer Key | Eligibility | Application | Preparation Tips | Question Paper | Admit Card | Result | Accepting Colleges

Get Updates Brochure

Srishti Manipal Entrance and Aptitude Test

Eligibility | Application | Exam Pattern | Admit Card | Result | Counselling | Preparation Tips | Accepting Colleges

Get Updates Brochure