Hello aspirant

hope you are doing fine and great

As per your query , I would like to tel you that at 86 percentile your estimated rank will be around 143220 - 161000 . At this rank your chances are quite low to get a seat in  amrita in cse stream . I would advise you to start preparing for next attmept and score atleast below 10000 to secure a seat. Kindly refer the link of offiical jee main site for amrita cut off

https://jeemains.in/amrita-school-of-engineering/

Hope you found this answer helpful. Good luck for your future