Hii payal,

Hope you are doing well.

Candidates from general category are require a score of minimum 450 marks, then there will be top 400 ranks allotted to them. candidates from OBC Category have benefit of 20 marks, that means they are required to score nearly 430 marks minimum and they have slot till 680 ranks.

50% seats are locked for unreserved category .

81 percentile is not that bad but even not so good.

But you can get private colleges from your ICAR rank from general category.

If you would have given your rank it would have been more better.

https://university-careers360-com.cdn.ampproject.org/v/s/university.careers360.com/articles/icar-aieea/amp?amp_js_v=0.1&usqp=mq331AQKKAFQArABIIACAw%3D%3D#collegesacceptingicaraieeascores2021

Go through the link, for colleges accepting the ICAR rank and cross check with yours

Hopefully this will be helpful.

BEST wishes ahead.