Dear Aspirant,

KCET exam can be given by any student who is a citizen of India which automatically means that students from different state can appear for the exam given that they fullfill eligibility criteria. I am providing you a link which should clarify all your doubts related to the exam including the eligibility criterias.

Check this out: https://www.careers360.com/exams/kcet

Hope this Helps!
All the Best