Hello Surbhi,

There is no entrance exam for BSc. (Hons.) Mathematics in DU. The percentage in best four subjects (Mathematics, one language paper and two best elective subjects under academic stream) of class 12th is considered. You will have to apply on the Delhi University website. Once the deadline of online application in over, all the release cut-off percentage for different courses.  You can take admission in the college where your percentage is meeting with the cut-off within three days, then second list is released, so on and forth until the seats are filled.

Eligibility for admission in this course:

The candidate must have passed Class 12 examination from a recognized board with 50% marks in Mathematics and an aggregate of 45% marks in qualifying examination (relaxations will be given to SC,ST and OBC quota candidates as per the university rules).

Hope this answer helps!