Hello,

Hope you are doing well.

According to your rank obtained there are good possibility of yours to get CSE at Amrithapuri. The  rank you obtained comes under the closing rank required to get CSE at Amrithapuri when compared with previous year closing rank. As you have mentioned you belong to Open quota then you can get CSE at the starting phases of admission. Here is the link you can visit to see previous year cut off of Amritapuri.

https://engineering.careers360.com/articles/aeee-cutoff

Hope this will help you!

All the best for your bright future!