Hello aspirant,

Hope you are doing great...!!

The important topics of Mathematics Class 11 for the UPSC NDA exam are as follows:-

Algebra + Vector Algebra

Trigonometry

Determinants and Matrices

Analytical Geometry

Vector Algebra

Statistics and Probability

Differential Calculus and Integral calculus

Analytical Geometry of Two and Three Dimensions

For more information, you can visit the following link:-

https://competition.careers360.com/articles/how-to-prepare-for-nda

Hope this helps you!

All the best:)