Hello Samir,

Since the correction window has been closed in April itself so you cannot change your quota but you can try by taking all the required documents during the councelling time or can contact the concerned person in the college regarding this issue 

Here I am sharing a link with you which will help you in a good way 

https://engineering.careers360.com/articles/upsee

Hope this will help you in a good way and can ask for more clarification