Hello,

Having Mathematics as an additional subject in Class 12th doesn't directly impact your eligibility for admission to IITs through JEE Advanced. However, you must meet the following criteria:

· Score a minimum of 75% in Class 12th (or equivalent) exams.

· Clear the JEE Advanced cutoffs.

· Meet the specific subject requirements (usually Physics, Chemistry, and Mathematics).

If you fulfill these conditions and perform well in JEE Advanced, you can secure admission to IITs.

Hope this helps,

Thank you