Hey Ardra,

Spot allotment generally happens at the end of all rounds of counseling. In case there is a vacant seat, the spot allotment will be done. Candidate having their names in the rank list will be eligible to attend the spot allotment. However, candidates who have obtained seats in a course in Government colleges on merit will not be eligible to participate in the spot allotment for that particular course. A candidate admitted in Government merit seat in a Government Controlled Self Financing College will be allowed to participate in spot admission for a Government College for any course.

for more info visit https://engineering.careers360.com/articles/keam-seat-allotment

Hope that helps

all the best