Greetings aspirant!

No, you will not have to re apper for your practical exams. The rules says that if you fail in any subject, you are required to give it's compartment, only written exam is held for that subject, and practical marks for the subject remains same. So, if you are planning to give compartment for a particular subject in Gujarat board prepare only for written exam and your previous practical marks will be carried forward. Here's a link to the official website of gujrat board. https://www.gsebeservice.com/

Hope you find it helpful.
Thanks!