Hello

Elective courses that are offered by the main discipline of study (like for honours subject such as botany honours the courses will be restricted to biology itself and not incluse maths or any other unrelated subject except in the elective courses from other departmentrs) is called as Discipline Specific Elective.

The Institute may offer some discipline related Elective courses of interdisciplinary nature too(to be offered by the subject of study).

Also, the subjevts you have studied o far (maths in the first two years) will be mentioned in the result (final resut). For more details you can click on https://ugc.ac.in/pdfnews/8023719_Guidelines-for-CBCS.pdf