Hey Dulak!

You can get yourself enrolled in University of Delhi for undergraduate course of BSC (Hons.) Mathematics. There is no prescribed upper age limit set at the University of Delhi (DU). BSC.(Hons.) Mathematics from Delhi University is a bachelor's degree course. This course provides in-depth understanding of geometry, Trigonometry, calcilus, and numerous other mathematical topics. The eligibility requirement for this course is a total of at least 60% in one language from List A1, Mathematics, and two subjects from List B.

Other than Delhi University (DU), JNU is another famous university which has not set up any upper age limit for admission. Other than these, there are several private universities which provide mathematics courses. Once you complete the bachelor's programme, you can further enrol in postgraduate studies.