Hello!

In JEE Advanced eligibility, the top 5 subjects from your board exam are considered. Usually, they are Physics, Chemistry, Mathematics, and any two other subjects from the main curriculum. If CMS is your optional subject and IT is an additional subject, the board will still calculate based on the 5 highest marks from your eligible subjects. Additional subjects are considered only if they replace a lower score from another subject. For example, if IT has a higher score than English or CMS, then IT can be counted. However, some boards follow strict rules where only main subjects are counted, so you must verify with your board’s official notification. The 75% criteria means your average percentage in those best 5 subjects must meet the requirement. My advice—list all your subjects, arrange them from highest to lowest marks, and take the top five as per rules.

Hope this clears your doubt!