Hey Sravya

More than your percentile, your chances if getting cse seat in Amrita Coimbatore depends on your rank. There are other factors too like your category and domicile state. However I will try to help you with whatever I know.  Amrita Vishwa Vidyapeetham, Coimbatore is the main campus of the Amirta Vishwa Vidyapeetham Group. With 86.57 percentile your rank may be around 2 lakh and this rank mmay not be enough to get  Amrita CSE.  Amrita Vishwa Vidyapeetham will release the AEEE 2020 cutoff after the counselling process. If you need more information you can click on https://engineering.careers360.com/articles/aeee-cutoff

All the best.