Hello @HituSood ...
Yes, if you have a single course with multiple sections in it, when you publish the course:
How do I publish a course?
...it will make the content available for all students in the course.
If you are wanting only certain students to have access, it's common for you to have multiple course shells each with their own section number. For example, you might have four separate course shells for "English 101"...each labeled with it's own course number: ENG101-1, ENG101-2, ENG101-3, and ENG101-4. That way, you can publish only the courses that you want...when you want. The one complication with this, however, is that if the curriculum is the same for all four courses, then you are having to maintain four separate courses. In a previous Canvas admin role at a college in Wisconsin, some of our faculty had many sections of the same course, so it was common for them to have 2, 3, or 4 Canvas courses that had the same curriculum.
There may be other suggestions from folks here in the Community that teach courses in Canvas that have suggestions on what has worked for them, so I would welcome that feedback to this topic as well.
I hope this will be of some help to you. Take care...be well.
