NTSE is a scholarship examination conducted by NCERT for students of Class X
To identify and nurture the talented students
Notified by the respective state and it may vary from state to state.
The examination is two-stage. Stage I is conducted by states and stage II is conducted at national level.
For Stage I it varies from state to state. For Stage II, result is generally declared in last week of July.
For both Stage I & II, the examination includes
NCERT text books from class VI to X
http://www.ncert.nic.in/programmes/talent_exam/index_talent.html