About Freeze, Slide or Float

Freeze: In this option students select the seat of choice in a particular college and confirm through freeze option, which ensures the admission is fixed.

Slide: While in this option student, who is allotted seat in a particular college and wish to continue in the same college can choose the 'slide' option. Here, he/she shall fix the college but not the branch.

Float: The 'Float' option enables student to select another college and another branch. Here, seat allotment gets canceled and students will be retained in the admission process

Feel free to comment if you have any doubt
Good luck