Hello,

NTSE  is conducted in two stage: NTSE Stage 1 is conducted at State level by State Authorites while NTSE Stage 2 is conducted at National level by NCERT. When it comes to preparation for both these stages of exam, NCERT books are the best option.

For more detailed information for NTSE Syllabus, you can go through the following link:

https://school.careers360.com/articles/ntse-syllabus