Hello there!

Hope you are fine.

DUJET eligibility criteria says that one is eligible only if  candidate have passed class 12th with atleast 60% aggregates in four subjects: Mathematics, English and any two other elective subjects.

Unfortunately, the candidate who didn't have mathematics in class 12th are not eligible for DUJET.

So, you can not prepare maths just for entrance exam.

But this eligible criteria is for University of Delhi only, other universities have different eligibility criteria.

Hope you got your answer.

All the best!!!