Yes, you can give the CDS exam after completing a BJMC course, provided you meet the other eligibility criteria set by the Union Public Service Commission (UPSC) which conducts the exam.

A candidate must have a Bachelor's Degree from a recognized university. Your BJMC degree fulfills this requirement.

A BJMC degree might not provide a direct advantage in the CDS exam content, which focuses on mathematics, science, general knowledge, and military aptitude. However, the communication and analytical skills you develop during your BJMC program can be beneficial for aspects like the interview stage.


https://media.careers360.com/articles/ipu-cet-bjmc

I hope it helps!