Hello aspirant,

If yuou do not have the maths in your class 12th, then you must select the option was without mathematics, physics and chemistry. This is possible because any medical students can also appear to give NDA Exam. UPSC conducts NDA exam twice a year. MEDICAL and Non-Medical student can join Indian Army, Indian Air Force and Indian Navy. Humanities and Commerce students can also take NDA exam but they can only join Indian Army.

Further, to know more about the NDA exam, its eligibility criteria, qualifications, admisison, etc - you can follow the below mentioned links to know more about it : https://competition.careers360.com/exams/nda

https://competition.careers360.com/articles/nda-eligibility-criteria

I hope that this will help.